Height and age : Are older men shorter than younger men? According to a national report, the
Question:
Height and age: Are older men shorter than younger men? According to a national report, the mean height for U.S. men is 69.4 inches. In a sample of 164 men between the ages of 60 and 69
, the mean height was x = 68.7 inches. Public health officials want to determine whether the mean height
for older men is less than the mean height of all adult men. Assume the population standard deviation to be
= 2.65.Use the = 0.10
level of significance and the P-value method with the TI-84 calculator.
Part:0 / 4
0 of 4 Parts Complete
Part 1 of 4
State the appropriate null and alternate hypotheses.
This hypothesis test is a (Choose one) test. left, right, or two tailed test? |
What is the P- value?
What are the critical values of a = 0.10 ?
Do we reject or fail to reject Ho ?
Do we have enough evidence to support the hypothesis?
Expert Answer:
