If a researcher using the one-sample t test reports that df = 20, how many parti

Question

If a researcher using the one-sample t test reports that df = 20, how many participants were in the sample? n = 19 n = 20 n = 21 cannot be determined from the information given If you retain the null hypothesis in Step 4 of the hypothesis testing procedure, it means that the data do not provide sufficient evidence to say that the treatment has the predicted effect. If the obtained sample mean falls in the region of rejection, then your decision in Step 4 of the hypothesis testing process should be to retain H_0.

Explanation / Answer

Question 4.

df = n-1

20 = 21 - 1

ANSWER: C. n = 21

Question 5)

retain Null Hypothesis = do not Reject Null Hypothesis

ANSWER: a. True

Question 6)

ANSWER: b. False

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