Questions 1-2: In a random sample of students at a large university, the followi
ID: 3059193 • Letter: Q
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Questions 1-2: In a random sample of students at a large university, the following data were obtained on the number of times in the past year each student went to a movie and attended a sporting event. We'd like to use the data to see if there is a difference, on average, in the numbers of movies and sporting events attended for all students at this niversity. 10 mean SD Movies 13 4 Sports |5 |0 12 2 |2016 4 16 - -7- 2 45- 10- 2512-114.6-t-12.47397- 12 25 0 9.0 | 837987 . 5.6 14.84138 12 [Diff 18 14 1 -8 4 14 33 15 25 0 Probability Plot of Movies, Sports, Diff Normal 95% CI Movies 90 90 50 50 10 40 60 20 20 40 Diff 90- 50 10 50 25 25 50 I. How many degrees of freedom would there be for the appropriate test? A. 9 B. 10 C. 15 D. 18 E 19Explanation / Answer
Questions 1-2: In a random sample of students at a large university, the following data were obtained on the number of times in the past year each student went to a movie and attended a sporting event. We'd like to use the data to see if there is a difference, on average, in the numbers of movies and sporting events attended for all students at this niversity. 10 mean SD Movies 13 4 Sports |5 |0 12 2 |2016 4 16 - -7- 2 45- 10- 2512-114.6-t-12.47397- 12 25 0 9.0 | 837987 . 5.6 14.84138 12 [Diff 18 14 1 -8 4 14 33 15 25 0 Probability Plot of Movies, Sports, Diff Normal 95% CI Movies 90 90 50 50 10 40 60 20 20 40 Diff 90- 50 10 50 25 25 50 I. How many degrees of freedom would there be for the appropriate test? A. 9 B. 10 C. 15 D. 18 E 19
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