Question

help on 4-10

Samuel Ro.eso Exam 3, Chapters 7-8 You mayY consult vour hoak and notes, Please write clear answers and show all steps and work The test sed to reach a decision about the mall hypothesis when the population variance is unknown in the emal distribution The more deerees of freedomm, the closer a f distribution is to the nplased populalion vantame . (In words), The symbol S represents the (Describe in words) is the In the formula (M-p)/ S, S 4 If the mean of a sample is 95, the mean of Population 2 is 75, and the standard deviation of the distribution of means is 5, the t score resulting from af test for a single sample is 5. (Give a number.) 6. Before conducting a t test for dependent means on a set of pretest and posttest scores, the two sets of scores must be combined into one set of scores by figuring 7. When carrying out a t test for dependent means with a mean difference score of 20 and a variance of the distribution of means of 25, the t score is . (Give a number.) 8. In a t test for dependent means in which 10 participants are each tested twice, the number of degrees of (Give a number.) freedom is 9. You are evaluating a non-directional hypothesis at the 01 significance level using at test for a single sample. If there are 16 people in the sample, the cutoff score (critical value) needed is 10. You are evaluating a directional hypothesis at the 05 significance level using at test for a single sample. If there are 20 people in the sample, the cutoff score (critical value) needed is

Answer 1

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