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1. From experience, a manager knows that the commissions earned by her salespeople are very well approximated by a normal distribution. The manager wants to test whether the average commission is $439 per month. A random sample of 100 observations is available. What statistical test is best in this situation? Why?
2. Returns on stock of small ?rms have been shown to be symmetrically distributed, but the distributions are believed to be "long-tailed"-not well approximated by the normal distribution. To test whether the average return on a stock of a small ?rm is equal to 12% per year, what test would you recommend? Why?
Let A and B denote genetic characteristics and suppose that the probability is 1/3 that an individual chosen will exhibit
a hypothesis test for a population proportion p is given below ho p 0.25 vs. ha p ne 0.25 ne means not equal for
In this study we will consider the current issues of operational expenses in relation to the number of staff and number of branches being experienced by 123 Finance Inc.
Essay on Chocolate Consumption and Nobel Prize Winning Chances
At the 5% level of significance, test whether the proportion of internet users paying bills online is now more than 50%.
What is meant by a probability distribution? Discuss how you could use one of the text probability distribution at your workplace to help solve a business problem.
in the linear regression model it was found that the 90 confidence interval for the regression coefficient b is 1.59.3.
in a 10k run 27.4 of the runners finished the race in 49 minutes 42 seconds or faster. suppose that this result holds
Generate a 95% confidence interval for the true mean total cholesterol levels in children.
A survey of undergraduate students in the School of Business at Northern University revealed the following regarding the gender and majors of the students:
What is the population of interest? Find the gas prices of regular, unleaded gasoline at 45 gas stations in the Milwaukee area. You can do this using the suggested websites below or you can drive around and record prices. Note that these websites..
70 of light aircraft that disappear while flying in a certain country are subsequently discovered. of the aircraft that
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