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Every semester, students are given a questionnaire to evaluate their instructor's teaching. The question that is of greatest interest to administrators is, "Do you agree with the following statement: ‘overall the instructor was a good teacher.'" The possible responses are Strongly agree, Agree, No opinion, Disagree, and Strongly disagree.
a. Are the number of students in class responding Strongly agree a continuous or discrete random variable?
b. Are the percent of students in class responding Strongly agree a continuous or discrete random variable?
To determine if this is evidence that students perform worse under uncomfortable conditions, The P-value of a test
Why do Type I and Type II errors exist in hypothesis testing? Do you see some similarities in hypothesis testing and the guilty or not-guilty decisions jurors must reach during trials? Explain.
Write a computer program to simulate the queue in Exercise 20. Have your program keep track of the proportion of the time that the queue length is j for j = 0, 1, . . . , n and the average queue length. Show that the behavior of the queue length i..
a company asserts that 75 of the customers who purchase its special lawn mower will require no repairs during the first
step 1 solve the following problems.use a program such as ms word to write your solutions to the following problems. be
To determine the possible effect of a chemical treatment on the rate of seed germination, 300 chemically treated seeds and 250 untreated seeds were sown.
u.s. department of agriculture date reveal small farms in the usa number one million owners. small farm data show
When would you use a hypothesis test for the difference in two population proportions at your place of employment, in your education, or in politics?
Can you conclude that every one-bedroom apartment costs less than every two-bedroom apartment? Which is more useful to someone planning to rent an apartment, the confidence interval or the significance test?
question 20 cubic meters of hydrogen gas at 47 degrees celsius is heated under constant pressure to a tempature of 127
suppose that the service life in years of a hearing air batter is a random variable having a weibull distribution with
Suppose we have two bidders and the distribution is uniform. Show that if the auction is effcient the payment rule - show that the sellers payments are unbounded.
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