Question: . n. A repeated-measures study with a sample of # - 9 participants produces a mean difference of My = 4 with a standard deviation

. n. A repeated-measures study with a sample of # - 9 participants produces a mean difference of My = 4 with a standard deviation of x = 12. Based on Out mean and sundard deviation you should be able to visualice for sketch) the sample distribution, Use a two-tailed hypothesis test with a = 125 th determine whether it is likely that this sample came from a population with in = 0.

b. Now assume that the samples standard deviation is

$ = 3, and once again visualize the sample distribution. Use a two-tailed hypothesis test with

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