Description
for each of the following situations:
a. Independent
variable: infertility treatment A vs infertility treatment B vs control
condition; dependent variable: did vs did not become pregnant.
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Explanation & Answer
The test that would be used Multiple ANOVA because you have more than 2 variables and groups. Hopes this helps!
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module 5 and exam
Problem Set 5.1Problem Set 5.11. Describe, in your own words the sampling distribution of x̄.- Click here to enter answer ...
module 5 and exam
Problem Set 5.1Problem Set 5.11. Describe, in your own words the sampling distribution of x̄.- Click here to enter answer - 2. For the sampling distribution of x̄, is it necessary that the samples used in the distribution be all of the same size?- Click here to enter answer - 3. What is E(x̄)? What is E(x̄) equal to?- Click here to enter answer - 4. Suppose you take a random sample and find the sample mean, x̄. Based on the previous problem, can you say that x̄ is equal to the mean of the entire population µ?- Click here to enter answer - Problem Set 5.2Problem Set 5.21. Suppose that you are attempting to estimate the weight of 600 parts. In order to use the infinite standard deviation formula, what sample size, n, should you use?- Click here to enter answer - 2. A nursing home has 2000 patients. You sample 170 patients. Can you use the infinite standard deviation formula?- Click here to enter answer - 3. Suppose that you take a sample of size 15 from a population that is known to be normally distributed. Can the sampling distribution of x̄ be approximated by a normal probability distribution?- Click here to enter answer - 4. Suppose that you take a sample of size 20 from a population that is not normally distributed. Can the sampling distribution of x̄ be approximated by a normal probability distribution?- Click here to enter answer - 5. Suppose that you take a sample of size 40 from a population that is normally distributed. Can the sampling distribution of x̄ be approximated by a normal probability distribution? What if the population was not normally distributed, can the sampling distribution of x̄ be approximated by a normal probability distribution?- Click here to enter answer - Problem Set 5.3Problem Set 5.31. Suppose a pharmaceutical company wants to do a study of the commissions of its sales force. Let's assume that there are 4,300 sales people and the population mean for the sales force is $52,400 in commissions and has a population standard deviation of $3,500. What is the probability that a simple random sample of 50 members of the sales force will have commissions within $400 of the population mean?- Click here to enter answer - 2. Suppose that in a certain large city, the mean 100 meter dash time for male high school seniors was reported to be 13.3 seconds with a standard deviation of 1.9 seconds. We may assume that the population is normally distributed.a) What is the probability that 20 male high school seniors selected at random will have a mean 100 meter dash time of 12.5 seconds or less?- Click here to enter answer - b) What is the probability that 40 male high school seniors selected at random will have a mean 100 meter dash time of 12.5 seconds or less?- Click here to enter answer - c) What is the probability that 35 male high school seniors selected at random will have a mean 100 meter dash time between 13 seconds and 14 seconds?- Click here to enter answer - 3. Suppose that you have a large number of potatoes. The mean weight of the potatoes is 7.4 ounces with a standard deviation of 2.2 ounces. We may assume a normal distribution.a) If you choose 25 potatoes at random, what is the probability that the mean of this sample of 25 potatoes is between 7 and 8 ounces?- Click here to enter answer -b) If you choose 45 potatoes at random, what is the probability that the mean of this sample of 45 potatoes is less than 7 ounces?- Click here to enter answer -c) If you choose 40 potatoes at random, what is the probability that the mean of this sample of 40 potatoes is more than 7.5 ounces?- Click here to enter answer -Problem Set 5.4Problem Set 5.41. According to the American Diabetes Association (2013), 8.3 % of the U.S. population have diabetes.a) Suppose that you take a random of 80 Americans, what is the probability that 7 % or less of these 80 people have diabetes?- Click here to enter answer - b) Suppose that you take a random of 120 Americans, what is the probability that 8 % or more of these 120 people have diabetes?- Click here to enter answer -
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This week's discussion is about correlation and regression concepts. Use the internet to find a website that shows an exam ...
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This week's discussion is about correlation and regression concepts. Use the internet to find a website that shows an example or application of correlation or regression in an area of interest in your personal or professional life. Discuss how correlation or regression was used, summarize your findings, and share them. Be sure to include the independent and dependent variable – discuss the impact/relevance of the independent variable.Be sure to support your statements with logic and argument, citing any sources referenced. Post your initial response early, and check back often to continue the discussion. Be sure to respond to your peers and instructors posts, as well.
11 pages
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The purpose of the paper is to analyze the condominium sales of Gulf Real Estate properties based on the whether it is loc ...
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Learn by DoingHere are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing discussion board exercises. ContextA newspaper story in Knight Ridder Newspapers described an experiment in an article with the headline “Doctor Dogs Diagnose Cancer by Sniffing It Out.”In the experiment researchers trained dogs to identify people with breast or lung cancer. The dogs were trained to lay down if they detected cancer in a breath sample. After the training, dogs sniffed different breath samples of people with and without cancer. Impartial observers watched the dogs and decided when the dog identified a person as having cancer. Researchers then revealed the condition of the person who gave the breath sample and determined if the dog had correctly identified the presence of cancer.The newspaper states, “The researchers blinded both the dog handlers and the experimental observers to the identity of the breath samples.”PromptExplain what the following sentence means. “The researchers blinded both the dog handlers and the experimental observers to the identity of the breath samples.”Explain why blinding in this experiment is important.
Boston University Who Should Be Responsible for Managing Risk Discussion
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