A group of 17 students participated in an evaluation of a special training session that claimed to improve memory. The students were randomly assigned to two groups: group A, the test group, and group B, the control group. All 17 students were tested for their ability to remember certain material. Group A was given the special training; group B was not. After 1 month, both groups were tested again, with the results as shown in the following tabl
e. Do these data support the alternative hypothesis that the special training is effective at the a = 0.01 level of significance? Assume normality.

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