Suppose a recent national survey reports that the mean

Last updated: 3/21/2023

Suppose a recent national survey reports that the mean height of adult males is 69 6 in with a standard deviation of 3 2 in im thinks that the mean height of adult males is shorter than reported He randomly collects the heights of 40 adult males and finds the mean height to be 68 8 in Select the correct null hypothesis Ho and the correct alternative hypothesis H Ho H