# Question: The mean of a population of raw scores is 33

The mean of a population of raw scores is 33 (σx = 12). Use the criterion of .05 and the upper tail of the sampling distribution to test whether a sample with X = 36.8 (N = 30) represents this population.

(a) What is the critical value?

(b) Is the sample in the region of rejection? How do you know?

(c) What does this indicate about the likelihood of this sample occurring in this population?

(d) What should we conclude about the sample?

(a) What is the critical value?

(b) Is the sample in the region of rejection? How do you know?

(c) What does this indicate about the likelihood of this sample occurring in this population?

(d) What should we conclude about the sample?

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