A Meteorologist Stated That the Average Temperature During July in Chattanooga

Multiple Choice

A meteorologist stated that the average temperature during July in Chattanooga was 80 degrees. A sample of 32 Julys was taken. The correct set of hypotheses is

A) H₀: $\mu$ < 80 H_a: $\mu$ $\le$ 80
B) H₀: $\mu$ $\le$ 80 H_a: $\mu$ > 80
C) H₀: $\mu$ $\neq$ 80 H_a: $\mu$ = 80
D) None of the other answers are correct.