A Weatherman Stated That the Average Temperature During July in Chattanooga

Multiple Choice

A weatherman stated that the average temperature during July in Chattanooga is 80 degrees or less.A sample of 32 Julys is taken to test the weatherman's statement.The correct set of hypotheses is

A) H₀: $\mu$ $\geq$ 80 H_a: $\mu$ < 80.
B) H₀: $\mu$ $\leq$ 80 H_a: $\mu$ > 80.
C) H₀: $\mu$ $\neq$ 80 H_a: $\mu$ = 80.
D) H₀: $\mu$ < 80 H_a: $\mu$ > 80.