A random sample of 850 high school girls showed that 400 had done strenuous exercise over the past year. The researcher wants to test the hypotheses below for p = the proportion of all high school girls who do strenuous exercise. H0: p 0.50 Ha: p < 0.50 Report the conclusion in the context of the situation.
Question 2
Imagine taking many different samples of n = 30 values from a population of resting pulse rate values. Which one of these statistics is most likely to have a sampling distribution that is approximately a normal distribution?
a. The maximum pulse rate in a sample.
b. The minimum pulse rate in a sample.
c. The mean pulse rate in a sample.
d. The mean pulse rate in the population.
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Schematic representations of (a) random, (b) alternating, (c) block, and (d) graft copolymers.
Joint movements of the lower leg for recovery after strenuous exercise.
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