A 2010 poll by Marist University asked people to choose their favorite classic Christmas movie from a list of five choices. The following table shows the frequencies for the various movies:
Test at a 1% significance level whether these five movies are equally preferred.
Answer to relevant QuestionsDuring a bear market, 140 investors were asked how they were adjusting their portfolios to protect themselves. Some of these investors were keeping most of their money in stocks, whereas others were shifting large amounts of ...Recent recession and bad economic conditions forced many people to hold more than one job to make ends meet. A sample of 500 persons who held more than one job produced the following Test at a 1% significance level whether ...Refer to Exercise 11.62b. Test at a 2.5% significance level if the population variance is greater than 1.1. n = 17, s2 = 1.7 A sample of seven passengers boarding a domestic flight produced the following data on weights (in pounds) of their carry-on bags. a. Using the formula from Chapter 3, find the sample variance, s2, for these data. b. Make ...Refer to Problem 11.61. Explain why the hypothesis test in that problem is a test of homogeneity as opposed to a test of independence. What feature of the data would change if you were to collect data in order to test for ...
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