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 304 men between the ages of 60 and 69. the mean height was x=69.3 inches. Public health officials want to determine whether the mean height ji for older men is less than the mean height of all adult men. Assume the population standard deviation to be o 2.11. Use the 0.05 level of significance and the P-value method with the 11-84 Calculator Part 1 State the appropriate null and alternate hypotheses H69.4 H