. A marine biologist claims that the mean length of mature female pink seaperch is different in fall and winter. A sample of 26 mature female pink seaperch collected in fall has a mean length of 127 millimeters and a standard deviation of 14 millimeters. A sample of 31 mature female pink seaperch collected in winter has a mean length of 117 millimeters and a standard deviation of 9 millimeters. The distribution of lengths of female pink seaperchs is normally distributed in both seasons. At a = 0.01, can you support the marine biologist's claim? Assume the population variances are equal.

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