Survey Design and Analysis Coursework Example | Topics and Well Written Essays - 2250 words

Survey Design and Analysis - Coursework Example (i) Correctness of arguments used in explanations. (75%) (ii) Clarity of arguments used in explanations. (25%) The accuracy of confidence interval calculated from survey data increases as the survey's sample size increases because the standard error involved in survey data is inversely proportional to the sample size and as the sample size increases, standard error decreases and hence the accuracy of confidence interval increases so that the sample mean approaches more close to the population mean in probability (ie. consistency improves to great extent). For example if the confidence interval is wider enough ie.99% there is a high confidence of the population mean falling into the confidence interval rather than 95% confidence interval. Here the Sample Mean plus or minus 2 times the Standard Error is the confidence interval and it leads to prediction of population mean with 95% confidence where it is called as 2sigmal limits. Whenever the confidence interval is widening as much as possible, it has high probability of including the population mean. This section reserved for feedback from tutor Mark: [XX] out of 10 Comment: Part Two In the box below, give recommendations as to when stratified sampling can be useful when conducting a survey. (10 marks) Marks will be awarded according to the following criteria. (i) Correctness of arguments used in recommendations. ... When stratification is done the within sample variance will decrease and the accuracy improves to a considerable extent. The stratification can be according to geographic constraint, economic consideration, educational consideration and the stratification reduces the sample variance. The stratification can be accompanied by cost or without cost. When it is done proportional to the population size, it is called Neyman allocation. When the cost constraint is involved, the cost per stratum should be proportional to the inverse of the variance. The cost per stratum is ch and the stratum variance is Sh. Within each stratum we have to adopt to sampling (simple random sampling) and compute the stratum mean or variance. Stratification leads to reduction in the population variance when compared to other sampling methods viz. systematic sampling and simple random sampling. This section reserved for feedback from tutor Mark: [XX] out of 10 Comment: Part Three In the box below, give recommendat ions as to when cluster sampling can be useful when conducting a survey. (10 marks) Marks will be awarded according to the following criteria. (i) Correctness of arguments used in recommendations. (75%) (ii) Clarity of arguments used in recommendations. (25%) Cluster sampling can be useful when the sample size is equal among different sampling methods. It is widely used in marketing research where a huge population is divided into groups (clusters) and a sample of the groups is selected. After selecting groups, subsamples from each group forms the sample for this type of sampling. For a given stipulated expenses, it gives large sample size. Cluster sampling can be one stage cluster sampling, two stage cluster sampling or multi stage cluster sampling. For example consider sampling

Ancient Religions Essay Example for Free

Ancient Religions Essay The ancient Norse religion was commonly followed and practiced by people in northern regions of the world, such as Scandinavia, Norway, Iceland and surrounding countries. It was believed that the world first came about when a northern and southern land, Niflheim and Muspellheim, both joined together. Niflheim (house of mists) , an extremely cold, icy land and Muspellheim (home of desolation) the seemingly opposite of Niflheim, a hot, fiery land. As both lands joined together, the reaction of the contrasting temperatures caused the ice of Niflheim to melt creating the first two living creatures Ymer, the giant and Audhumla, a female cow. From these two the first Gods were created (Odin, Vile and Ve), and from them the first human beings were created by Odin from an elm and ash tree. Due to a disagreeance between Ymer and the God’s, the giant was killed and from his body, landforms and other living races were created. The gods were revered by many as they were the creators of the races and established the different parts of the world, the world tree or Yggdrasil included. The Yggdrasil is one of the principal beliefs in Nordic religion as it was known as the centre of their nordic universe, the world tree was said to have held nine different realms within its branches. The realms were situated in different areas of the tree at the top, within the canopy; Asgard (heaven) was located. This is where many gods lived including Odin in Valhalla. In addition to Asgard two other realms Vanaheim (home of the fertility god) and Aflheim (home of light elves) were located at the highest level of the world tree. These realms were known as â€Å"divine†. Norse folk believed that Midgard, the middle section of Yggdrasil held the human world. Along with midgard, Nidavellir, Jotunheim and Svartalfhiem, home of the dwarves, giants and dark elves were also present here. At the third and bottom level of the tree the two lands that created the first living beings are found. It is believed that Hel, the place of death, is part of the harsh, destitute lands of Niflheim. Hel is connected to one of the three main root of the world tree and it is known as the underworld, the second root leads to Jotunheim( realm of the giants) and the third is connected to the divine realm, Asgard. The roots linked together the different levels and realms of the tree, likewise Bifrost, a magical bridge located between Asgard and the human world, Midgard was another connection between realms, allowing gods an entrance into the mortal world. The Influence of the Nordic beliefs in society was great as followers of the ancient religion could identify with the extreme life conditions and harsh weather that was also portrayed in the Nordic creation story. The Norse saw their conditions of life as a blessing from the gods and often used these gifts to the greatest advantage for example men often became farmers, cultivators, tradesmen or traders. Women in Nordic society also searched for meaning and insight from the gods as they held powerful positions in the religion. Women played a strong part in the community and often had to run the villages when the Viking warriors were away. The Norse strived to maintain a balanced lifestyle from the influence of what they had learned and incorporated from the gods. Odin was known as a wise and great warrior and many Viking men chose to follow the same path by becoming a warrior also. I was believed that one of the only worthy ways to die was to die in battle. This factor greatly contributed to the decisions of the Norse men. When a warrior died in battle he would go on to Valhalla, in the divine realm, if not they would go to Hel. The Norse people not only sought meaning from the gods, but from the actions and rituals they performed.

Comparison of Emily Dickinson Poems :: essays research papers

Emily Dickinson’s poems, â€Å"I† and â€Å"VIII†, are both three verses long and convey the irony and anguish of the world in different ways. By paraphrasing each of Dickinson’s poems, â€Å"I† and â€Å"VIII†, similarities and differences between the two become apparent. Putting the poem into familiar language makes it easier to comprehend.   Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"I† and â€Å"VIII† are easier to understand after they have been translated into everyday language. In main concept of the first verse of â€Å"I† is that success is valued most by those who never succeed and that fruit tastes sweeter to those that are hungry. The second verse goes on to enforce that those who are alive and well after a battle do not appreciate the victory. The ending of â€Å"I† concludes the statement started in verse two. Its concept is that the one who is dying is the one who truly values the news of triumph. Likewise, â€Å"VIII† starts off with a statement similar to that of â€Å"I†. A hurt animal jumps higher than usual due to the shock of death. The following verse reinforces the idea in a different manner, a hurt rock gushes, broken steel springs, and a cheek is red where it has been hurt. The concluding verse states that people only laugh to mask their pain in order to avoid showing the sa dness that they harbor to the world. Now that each poem has been paraphrased, it is simple to spy similarities and differences in their topics and structure.   Ã‚  Ã‚  Ã‚  Ã‚  The similarities between â€Å"I† and â€Å"VIII† exist in their use of irony, paradox, and repetition of ideas. Irony is woven throughout both poems. In â€Å"I†, the most apparent ironic statement is â€Å"as he defeated, dying, on whose forbidden ear the distant strains of triumph break, agonized and clear.† While we expect those alive and celebrating their victory to appreciate it most, Dickinson states that the one who has died for his country is the one who really values the win. In â€Å"VIII†, it is stated that â€Å"mirth is the mail of anguish† which appears to contradictory. However, in Dickinson’s poem, it is used as an ironic statement to prove that people go to extreme lengths to hide their pain. Along with irony, both poems contain a paradox. In â€Å"I†, it is â€Å"success is counted sweetest by those who never succeed.† In â€Å"VIII† it is â€Å"the ecstacy of death.† Both poems also repeat the same idea in a number of ways.

The National Climate Change Technology Initiative :: Environmental Policy Politics

The National Climate Change Technology Initiative (NCCTI) On June 11, 2001, in combination with his creation of the U.S Climate Research Initiative, President Bush stated that the United States is a world leader in technology and innovation and new technologies can offer a great advance towards climate change. As a result, Bush created a complement to the Climate Change Research Initiative (CCRI), called the National Climate Change Technology Initiative (NCCTI). The goal of NCCTI was to make the U.S a stronger leader of climate change-related technology research and development by improving research and development investments across U.S. agencies and by focusing the Federal R&D portfolio on Bush's climate change goal, both near and long term. NCCTI adds on to an extensive foundation of ongoing activities in R&D of climate change-related technologies. The President said on June 11, 2001: "We're creating the National Climate Change Technology Initiative to strengthen research at universities and national labs, to enhance partnerships in applied research, to develop improved technology for measuring and monitoring gross and net greenhouse gas emissions, and to fund demonstration projects for cutting-edge technologies, such as bioreactors and fuel cells."(5) Potential impacts of technology on a global scale are relatively long-term, the NCCTI is guided over this by the climate change goals of the United Nations Framework Convention on Climate Change of 1992 (Kyoto Protocol), ratified by the United States and more than 170 other countries (5) (3). The UNFCCC calls for the "... stabilization of greenhouse gas concentrations in Earth's atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system."(5) In order to achieve this long-term goal, net emissions of greenhouse gases on a global scale must ultimately approach levels that are lower than they are today. (1) Current activities of the NCCTI include a thorough and continuing review of all climate change technology-related research and development programs, with focus on improving the integration of supporting basic research activities. The NCCTI interagency working group is developing criteria to identify high-priority programs that may have the largest potential impact in the long term for reducing, avoiding, or sequestering greenhouse gas emissions.(5)(4) NCCTI also includes a proposal to fund a unique competitive solicitation program, in which technology research ideas will be funded on the basis of their potential to reduce, avoid, or sequester greenhouse gas emissions.

Biomedical Engineering

Biomedical engineering is the study of medical systems and the products used to treat patients. This is used in hospitals and labs by bioreactors. Scientists use this type of engineering to develop fake skin cells for people who have been in a fire, had a deep cut, or a amputation. To maximize the chance of a safe, clean, and bacteria-free cut. Scientists have made a pair of socks that control and monitor diabetic feet and prevent amputations for the patient. It helps cleanse the wound and alcohol is placed in the sock. Fake human tissue is made in labs and some people have it to cover up burns or deep wounds. This fake tissue is 3D printed and it replicates someone's cells and produces them. This replaces stem cells in the body and also helps the body heal faster and more properly. Patients who have had a side of their body burned have to stay in the hospital for up to six months sometimes even longer depends on the degree of the burn. he fake skin was made for people to help them heal faster and it has saved people from getting amputations. This synthetic skins breaths, operates blood flow and heals just like normal skin. They are made out of salt water and organic fibers, some prosthetics even have this synthetic skin on them to blend in with someone like it's their real arm. This skin helps in research as well, scientists inject diseases into it to see the reactions to tell if it's safe for humans. It can replace tumor cells once its out, the skin can be placed in the spot to help heal. Regulating protein count and fibers in the body and seeks signs of cancer. Artificial organs are being made in labs to help people who will die without a transplant and who doesn't have time to wait on doctors to find a doner. Organs-on-a-chip are used to test drugs and help researchers understand how the organ works. The tubes have a vacuum chamber which goes inside the organ and stretches the membrane and expands which can collect up to 50,000 cells. These organs are man-made and people who need transplants can go with the artificial organs instead of waiting for the plane to get there. It's used to pump blood through the body to keep all the cells alive, it decreases the impeller axis shift to help blood flow to the brain. If the organs takes too long, it can lead to infections then it will most likely spread throughout the body to other organs. The other organs would need a transplant as well unless the proper treatment is available at the time. Prosthetics are being made more efficient than ever. Biomedical engineers have made many life enhancing technologies for people who don't have their limbs anymore. There are more prosthetics a than arms and legs, there are fingers, racing blade leg, and even eyes. Approximately 1,000,000 people are deaf in the United States. There are now ears made out of the fake tissue cells and natural rubber that matches the patient's skin tone. They look just like a real ear and it has a hearing aid in the center of it to help the patient hear. It helps as a appearance and aesthetics just like a fake eye, it's hard to tell that the ear is fake. Implants are available as well, the prosthetic is made from a silicone mold of the patient's ear to fit them just right. A very small amount of spirit gum is applied at the base and the middle of the ear to get it to stay attached to the patients face. Farmers use pesticides to keep bugs and animals away that might eat their crops. If an animal eats a part of the crops then the farmer just lost that profit. Farmers want to do everything they can to keep their crops from bugs. Some pesticides are illegal in the U.S, they are toxic and sometimes they can release toxic fumes into the air that we breathe. Pesticides do more than harm pests, they can be dangerous for the human who consumes them. The symptoms of pesticides are nausea, vomiting, stomach cramps, headaches, dizziness, and even death if the poison is in your bloodstream for too long. They also damage the richness of the soil, so by farmers using pesticides on their crops they are hurting their sales in the long run. The soil will lose its nutrients from the poisoning and then water erosion happens which washes away the soil particles making it just plain dirt. Adding more soil to the dirt will not help out the nutrients, it can't compensate for the loss of nutrients in the topsoil. Farmers using GMOs to help their farm animals grow larger so they can sell more product is not illegal. Many farmers use them and GMOs allow them to place unnatural chemicals that make the food taste better so consumers will buy more of their product. Farmers are altering genetic material to produce artificial organisms. GMOs can be used in plants just like animals, in plants it helps them grow faster to produce more to sell. It helps the food the plants make taste better by altering its DNA. The DNA is extracted from sweet alyssum which plant grows the fastest. Scientist take that trait and create GMOs for their plants so they can grow faster. GMOs aren't dangerous to humans unless there are pesticides used on the plants to keep the bugs away. Scientists cross-breed these organisms in labs with bacteria and virus genes. A bonus to genetically altered food is longer shelf life, they are better for the consumer, and it takes less land to grow more food. Biomedical technology helps scientists find cure for diseases like smallpox, rinderpest, polio, yaws, and malaria. Biomedical engineering helps scientists understand how to cure diseases and create a cure for a disease unknown to mankind faster. Biomedical engineers are now closer than ever before to finding a cure for cancer, reporters say it will take about another five to ten years before they actually finish and perfect the cure. They are trying to use heat radiation to kill the cancerous cell through the body without Chemo or an incision. Another widespread disease that affected a lot of people across the world is malaria. Malaria is a plasmodium parasite transmitted by the bit of a mosquito. This disease started from Sub-Saharan countries in Africa, its hot there so the bugs are abundant. Mosquitos traveled from that area to all across the world carrying the disease. The cure was developed by Charles Louis Lavern on November 6, 1880. Back then, there wasn't many cures for disease just medicine to help control it. That was a long time ago and thanks to biomedical engineering, scientists can develop cures much faster and efficient such as someone taken the cure will most likely never get that disease again. Biomedical engineering helps healthcare. It produces more accurate equipment used in hospitals and on animals. Healthcare is so much more advanced now than it used to be, when babies or animals get their shots there didn't used to be any back then. They would just have to go without them and that's why disease was so rapidly growing, because there wasn't many cures but now everything is different. Even simple procedures like getting a cut or a burn required special attention and days of preparation to get better. Now they just give out stitches and anti-bacterial cream to clean it. All of us as a nation have came so far and within time, scientists will discover more and more treatments and cures. There are cures now using antimicrobials to kill microorganisms to stop their growth and to stop the spreading throughout the body. They are injecting good organisms into the body to kill off bad organisms that make someone sick. The earliest type of microorganisms were Penicillin, Salvarsan, and Prontosil and they were one of the biggest scientific advantages of all time. This was a new level of medical care, Pharmacists could only progress and discover more medicines. There are now antimicrobials in hand soaps and Hand Sanitizers which is available on the go. Agents such as bacteria, mildew, and mold that are used to make the organisms in the medicine. The helpful microbes come into contact with the surface and penetrate the cell blocking the harmful microbe to kill off and to limit the cell from growing and spreading from another part of the body. Anti Microorganisms work in the way similar of insecticides and fungicides because of how they disinfect, sanitize, and protect against infections. Peptidoglycan layers act as a spine to a cell and it allows in nutrients to enter the cell like acids and sugars. Vitamins can not enter the cell so the bacteria trapped in the cell must make its own. Cell manipulation is alter genetic human cells

Metaphorical Usage and Scare Quotes

Metaphorical Usage and Scare Quotes Metaphorical Usage and Scare Quotes Metaphorical Usage and Scare Quotes By Mark Nichol Writers often mistakenly believe they are being helpful when, in the act of using a word or phrase in a nonliteral sense, they frame the term in quotation marks intended to alert readers, â€Å"This usage is not being employed in its original sense!† However, because readers generally are able to make the cognitive leap to understand that the use of a word or phrase is metaphorical, such symbols- in this role called scare quotes- are almost invariably a distracting and even condescending device. As recommended in the discussions following each example and as demonstrated in the accompanying revisions, avoid such extraneous hand-holding except when coining a new metaphorical word or phrase. 1. In this regard, many companies are starting with a â€Å"clean slate.† It’s clear from the context of this sentence that the businesses in question are beginning with no expectations, records, or some other factor or component, not with a writing surface that has just been wiped: â€Å"In this regard, many companies are starting with a clean slate.† 2. If a combination of these and other â€Å"red flags† are noted, the board should investigate them. Brightly colored rectangles of fabric are obviously not under discussion here; the reference is clearly to abstract warning signs such as incongruous data or odd behavior: â€Å"If a combination of these and other red flags are noted, the board should investigate them.† 3. The board should be informed of matters related to financial reporting raised by â€Å"whistle-blowers.† The reference to employment of a loud noise-making device is obviously an allusion to the desire of a person to get the attention of authorities and/or the media when he or she discovers institutional wrongdoing: â€Å"The board should be informed of matters related to financial reporting raised by whistle-blowers.† 4. Employees can be tempted to â€Å"cut corners† and act in an unethical manner. It’s obvious that the workers under discussion face the temptation of figuratively, not literally, avoiding negotiating right angles as they navigate their way through the workday: â€Å"Employees can be tempted to cut corners and act in an unethical manner.† 5. Such policies are discouraged because they can create a â€Å"slippery slope† in practice. Readers will understand that no unsafe inclines are implied by the use of the scare-quoted phrase; the wording refers to the potential difficulty of controlling or halting something once it has been allowed to begin or occur: â€Å"Such policies are discouraged because they can create a slippery slope in practice.† Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Punctuation category, check our popular posts, or choose a related post below:100 Mostly Small But Expressive InterjectionsUsing the Active Voice to Strengthen Your Writing20 Ways to Laugh

Ozone essays

Ozone essays In this paper, evidence will show how ozone layer depletion is a problem. Harmful chemicals, produced by man, and nature, effect the ozone layer, a part of the earths atmosphere. The earth has environmental problems, and ozone layer depletion is just one of them. The ozone layer is a layer of irritating, corrosive, colorless gas that absorbs 97-99% of the suns high frequency ultraviolet light, which is damaging to life on earth. ( Sparling, Ozone Depletion) Ozone layer depletions history dates back to as early as 1956. In 1956, the first ground based measurements were taken in Halley Bay, Antarctica. The in the 1970s, satellite measurements were started. The first comprehensive worldwide satellite measurement happened in 1978 with the NIMBUS-7 satellite. The NIMBUS-7 carried on it two things, the TOMS (total ozone mapping spectrometer), and the SBUV (solar backscatter UV meter). The NIMBUS-7, along with other instruments, measured the amount of chlorofluorcarbons in the atmosphere. Chlorofluorcarbons were first created in 1928 as a non-toxic, non-flammable refrigerant, by a commercial company called DuPont. CFC-12 was the first type of chlorofluorcarbon (1 single carbon w/ 2 chlorines, s) created. (Sparling, Ozone Depletion, History ) M.J. Molina and F.S. Rowland published a lab study in 1974 demonstrating how CFCs breakdown ozone when a high frequency of UV light is present. Based on this study, an estimation of about 7% of ozone would be depleted in the next years, lead to the U.S. banning CFCs in aerosol sprays. Slowly after, other nations agreed to ban CFCs in aerosol sprays. In addition, the most recent world resolution, the Montreal Protocol, was based on negotiations between European-Scandinavian countries and the United States over CFCs in the fall of 1983. The Montreal Protocol was signed in the fall of 198...