Provides a type of sampling (independent or paired), sample size(s), and a figure showing the results of preliminary analyses on the sample(s). For independent samples, the graphs are for the two samples; for a paired sample, the graphs are for the paired differences. The intent is to employ the sample data to perform a hypothesis test to compare the means of the two populations from which the data were obtained. In each case, decide which, if any, of the procedures that you have studied should be applied.

Paired n = 75; Fig. 10.11

Fig. 10.11

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