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Based on a study of heights of men and women who do gymnastics, a researcher concludes that the exercise from playing gymnastics causes people to become shorter. Do you agree with this conclusion?
Choose which conclusion you agree with?
a. no, there may be a relationship between height and doing gymnastics, but that does not mean that one causes the other.
b. yes gymnastics exercises compress tendons causing gymnastics to become shorter.
c. yes, people who exercise spend energy being active and do not use that energy to grow.
d. no, there is no relationship between height and doing gymnastics.
We want to test the hypothesis that population B has a smaller variance than population A.
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The average age of the women was 45.582 with a standard deviation of 5.143. He uses this information to calculate a 95% confidence interval for the differnce in means, (-11.41, -5.422). The best interpretation of this interval is which of the foll..
Plot the data on the same line and give your impression regarding any apparent differences between the two companies.
The mean maximum oxygen uptake for elite athletes has been found to be 80 with a standard deviation of 8.1. Assume that the distribution is approximately normal.
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