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Question: For problem, give a 95% confidence interval for the difference in proportion of theaters nationwide where one movie will be preferred over the other. Is the point 0 contained in the interval? Discuss.
Problem: Two movies were screen-tested at two different samples of theaters. Mystic River was viewed at 80 theaters and was considered a success in terms of box office sales in 60 of these theaters. Swimming Pool was viewed at a random sample of 100 theaters and was considered a success in 65. Based on these data, do you believe that one of these movies was a greater success than the other? Explain.
Barron’s reported that the average number of weeks an individual is unemployed is 17.5 weeks (Barron’s, February 18, 2008). Assume that for the population of all unemployed individuals the population mean length of unemployment is 17.5 weeks and that..
Suppose that the resistance to break of a rope, in pounds, is equally distributed with an average of 100 pounds and a standard deviation of 16. What is the probability that said rope breaks with a force over 132 pounds?
Assume that the probability for each customer to show up is 92%. (a) What is the probability that someone will be bumped out?
question 1 a sample of the various prices for a particular product has been conducted in 16 stores which were selected
In Chinese-based economies guanxi plays a critical role in developing interpersonal relationships that underpin negotiations within business. It is defined as being ‘a concept of drawing on connections in order to secure favours in personal relati..
The experiment data in below table was to evaluate the effects of three variables on invoice errors for a company. Invoice errors had been a major contributor to lengthening the time that customers took to pay their invoices and increasing the acc..
Using the Consumer Food database, construct a histogram for the variable Annual Food Spending. How is the histogram shaped? Is it high in the middle.
The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision,
In about 300 words (indicate your word count), provide an executive summary of your analysis and findings to Mr. Nitin with respect to the opportunities to maximise revenue.
In the Reynolds Pamphlet how does Hamilton justify his actions? What differing perceptions of honor does the Reynolds pamphlet reveal?
Recall Problem 37 of Chapter 11. The data corresponded to 211 patients with stage IV prostate cancer who were treated with estrogen. A random sample of size 14 from the 211 observations of survival times and withdrawal times (in months) from Tabl..
For women who are HIV-positive when they get pregnant, is there a relationship between whether or not the HIV is transmitted to the infant and the length of time the woman had been infected before getting pregnant?
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