c Test if Americans get an average of less than seven hours

c. Test if Americans get an average of less than seven hours of sleep.

A. Ho: = 7; HA: 7

B. Ho: 7; HA: > 7

C. Ho: 7; HA: < 7

Solution

Set Up Hypothesis
Null , average is equal or greater than seven hours of sleepH0: U7
Alternate, average of less than seven hours of sleep H1: U<7