a A repeated measures study with a sample of n 25 participants produces a mean difference of MD 3 with a standard deviation of s 4 Based on the mean and standard deviation, you should be able to visualize (or sketch) the sample distribution Use a two tailed hypothesis test with 05 to determine whether it is likely that this sample came from a population with D 0 b Now assume that the sample standard deviation is s 12, and once again visualize the sample distribution Use a two tailed hypothesis test with 05 to determine whether it is likely that this sample came from a population with D 0 c Explain how the size of the sample standard deviation influences the likelihood of finding a significant mean difference

Question: a. A repeated-measures study with a sample of n = 25 participants produces a mean difference of MD = 3 with a standard deviation of

a. A repeated-measures study with a sample of n = 25 participants produces a mean difference of MD = 3 with a standard deviation of s = 4. Based on the mean and standard deviation, you should be able to visualize (or sketch) the sample distribution. Use a two-tailed hypothesis test with α = .05 to determine whether it is likely that this sample came from a population with μD = 0.

b. Now assume that the sample standard deviation is s = 12, and once again visualize the sample distribution. Use a two-tailed hypothesis test with α = .05 to determine whether it is likely that this sample came from a population with μD = 0.

c. Explain how the size of the sample standard deviation influences the likelihood of finding a significant mean difference.

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