A sample is selected from a population with = 50. After a treatment is administe

Question

A sample is selected from a population with = 50. After a treatment is administered to the individuals in the sample, the mean is found to be M = 55 and the variance is s2 = 64.

a. If the sample has n = 4 scores, then conduct a hypothesis test to evaluate the significance of the treatment effect and calculate Cohen's d to measure the size of the treatment effect. Use a two-tailed test with a = .05.

b. If the sample has n = 16 scores, then conduct a hypothesis test to evaluate the significance of the treatment effect and calculate Cohen's d to measure the size of the treatment effect. Use a two-tailed test with a = .05.

c. Describe how increasing the size of the sample affects the likelihood of rejecting the null hypothesis and the measure of effect size.

Explanation / Answer

A sample is selected from a population with = 50. After a treatment is administe

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.