1. A sample of n = 16 individuals is selected from a population with u = 40 and u - 12, and a treatment is administered to the sample. After treatment, the sample mean is M = 42. How does this sample compare to samples that should be obtained if the treatment has no effect? a. It is an extreme value that would be very unlikely if the treatment has no effect. b. It is much the same as samples that would be obtained if the treatment has no effect. c. The mean is noticeably larger than would be expected if the treatment has no effect but it is not quite an extreme sample. d. There is no way to compare this sample with those that would be obtained if the treatment had no effect.

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