stats 200 week 8 questions for MathematicsExpert
csimpson3317. The following data are from a hypothetical study on the effects of age and time on scores on a test of reading comprehension. Compute the analysis of variance summary table.
| 12 year olds | 16 year olds |
30 minutes | 66 68 59 72 46 | 74 71 67 82 76 |
60 minutes | 69 61 69 73 61 | 95 92 95 98 94 |
28. (ADHD Treatment (AT) case study)
(AT) The dataset ADHD Treatment has four scores per subject.
a. Is the design between-subjects or within-subjects?
b. Create an ANOVA summary table.
Illowsky Chapter 13 Exercise
69. A researcher wants to know if the mean times (in minutes) that people watch their favorite news station are the same.
Suppose that Table 13.24 shows the results of a study.
CNN | FOX | Local |
45 | 15 | 72 |
12 | 43 | 37 |
18 | 68 | 56 |
38 | 50 | 60 |
23 | 31 | 51 |
35 | 22 |
|
Assume that all distributions are normal, the four population standard deviations are approximately the same, and the data were collected independently and randomly. Use a level of significance of 0.05.
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