Question: A physician claims that joggers' maximal volume oxygen uptake is greater than the average of all adults. A sample of 15 joggers has a mean of 43.6 milliliters per kilogram (ml/kg) and a standard deviation of 6 ml/kg. If the average of all adults is 36.7 ml/kg, is there enough evidence to support the physician's claim at ? = 0.05? (Bluman, 1998, p. 381).

? First, identify the alternative and the null hypotheses.

? Secondly, calculate the critical value and df.

A. Explain which number is the null and which is the alternative.

B. To get the DF the formula is N-1 and how do you get the critical value, which is located in the back of the book.

C. m- u / o square root n

D. Explain whether the null hypothesis needs to be rejected or accepted