Question

A question of medical importance is whether jogging leads to reduction in one’s pulse rate. To test this hypothesis, eight non-jogging volunteers have agreed to begin a one-month jogging program. At the end of the month their pulse rates were determined and compared with their earlier values. Subject 12345678 Pulse rate before program 74 86 98 102 78 84 79 70 Pulse rate after program 70 85 90 107 71 80 69 74

(a) State the hypotheses.

(b) Calculate the test statistic, state the degrees of freedom and approximate the p- value.

(c) Would you reject H0 or fail to reject H0 at 5% level of significance? (d) What do you conclude about the effect of jogging for one month on pulse rate?

Answer 1

Here the subjects are same for the both samples. So we will use matched t test here.

As effect size is more than 0.5 we can say there is Medium to large effect of Exercise on pulse rate.