Doctors are now considering prescribing social activities as a way to increase the overall health of their patients. A random sample of adult men with heart disease were prescribed two sessions a week consisting of 30 minute group discussions on lifestyle changes followed by 45 minute golf lessons. As an indicator of overall health, each subjects' grip strength was measured at the start and end of the six-week study, with higher grip strength indicating better health. Let μg represent the population mean grip strength before participating in prescribed social activities, μA represent the population mean grip strength after participating in prescribed social activities, and μ represent the population mean difference in grip strength (before-after). Which of the following would be the null and alternative hypotheses for this study? (A) Ho HB HA and H.: HB>HA (B) Ho MBA and H.: HB #HA (C) Ho Mp MB -HA and H. HD 0 and H.: μp=0 (E) Hop 0 and Ha: p<0

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