a study of the effects of exercis used rats bred to have high or low capacity for exercise. The 8 high capacity rats had mean blood pressure 89 mm Hg and variance 81; the 8 low-capacity rats had mean blood pressure 105 mm Hg with variance 169. What is the value of the two-sample t statistic for comapring the two population means

Step-by-step explanation:

From the question we are told that:

Sample 1

Sample 1 mean blood pressure

Sample 1 variance

Sample 2

Sample 2 mean blood pressure

Sample 2 variance

Generally the equation for the test of statistic is mathematically given by

therefore the samples test for comparing the two population means

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step-by-step explanation:

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step-by-step explanation:

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