FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
Question
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Resting pulse rate is an important measure of the fitness of a personâ€™s cardiovascular system, with a lower rate indicative of greater fitness. The mean pulse rate for all adult males is approximately 72 beats per minute. A random sample of 25 male students currently enrolled in the Agriculture School at a major university was selected and the mean resting pulse rate was found to be 80 beats per minute with a standard deviation of 20 beats per minute. The experimenter wishes to test if the students are less fit, on average, than the general population. The null and alternative hypotheses are:

H0:


H0:xbar = 72; Ha:xbar < 72


H0:


H0:xbar = 80; Ha:xbar > 72


H0:

Explanation:
Detailed explanation1: Resting heart rate can predict cardiovascular morbidity and mortality. Measurements are easy to obtain, and monitoring heart rate can help in cardiovascular disease prevention and management.
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