Stats Hw

Lane Chapter 15

All material presented in the ANOVA Chapter

10. If an experiment is conducted with 5 conditions and 6 subjects in each condition, what are dfn and dfe?

17. 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

ADHD Treatment (AT) case study

http://onlinestatbook.com/2/case_studies/adhd.html

28. (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

69. A researcher wants to know if the mean times (in minutes) that people watch their favorite news stations 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.