Question: Refer to Exercise 36 For the sample data reported there
Refer to Exercise 36. For the sample data reported there, compute the proportion of students in each class who answered’ yes’ to the survey question. Following the approach described in Section 14.1 for testing proportion differences, use these four sample proportions to test the hypothesis that there would be no difference in the proportion of “yes” responses for students in the four populations (that is, classes) represented. Use a 5% significance level. Comment on the similarities between results in this test and the results of the test of independence you applied to the data in Exercise 36.
Answer to relevant QuestionsIn a study of investment behavior, a sample of 1500 investors was selected and asked to categorize their investment behavior as “aggressive,” “balanced,” or “conservative.” Investors were also categorized by ...Hernandez Cast Parts wants to compare the performance of four machine operators in the manufacturing section of the company, using a sample of 200 units produced by each operator. The number of defective units was as ...In a study of college athletes, the NCAA received anonymous responses from a random sample of 300 football players, 200 basketball players, and 100 baseball players. Asked whether they had used any banned performance ...AMTRAN is a package delivery company with hubs in Memphis and San Antonio. In a study of its delivery performance, the company tracked a sample of 150 customer complaints, determining the nature of the complaint and the hub ...You have selected a sample to use in testing a null hypothesis that Factor X and Factor Y are independent. Your job is to fill in the missing frequencies in the partially completed frequency tables below and then calculate ...
Post your question