The prices of a random sample of comparable (matched) textbooks from two schools were recorded. We are

Question:

The prices of a random sample of comparable (matched) textbooks from two schools were recorded. We are comparing the prices at OC (Oxnard Community College) and CSUN (California State University at Northridge). Assume that the population of differences is approximately Normal. Each book was priced separately; there were no books "bundled" together.
a. Compare the sample means.
b. Determine whether the mean prices of all books are significantly different. Use a significance level of 0.05. Distribution
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