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: μ 80 H_a: μ < 80.
B) H₀: μ 80 H_a: μ > 80.
C) H₀: μ ≠ 80 H_a: μ = 80.
D) H₀: μ < 80 H_a: μ > 80.

Question

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 isA) H 0 : μ 0 : μ 80 H a : μ < 80. B) H 0 : μ 80 H a : μ > 80. C) H 0 : μ ≠ 80 H a : μ = 80. D) H 0 : μ < 80 H a : μ > 80. class=answers-bank-image d-inline rel=preload > 80 H a : μ < 80.B) H 0 : μ 0 : μ 80 H a : μ < 80. B) H 0 : μ 80 H a : μ > 80. C) H 0 : μ ≠ 80 H a : μ = 80. D) H 0 : μ < 80 H a : μ > 80. class=answers-bank-image d-inline rel=preload > 80 H a : μ > 80.C) H 0 : μ ≠ 80 H a : μ = 80.D) H 0 : μ < 80 H a : μ > 80.

Mariah Steele · Accepted Answer

Final Answer : B, Explanation :  The correct set of hypotheses should be:Null Hypothesis (H0): The average temperature during July in Chattanooga is greater than or equal to 80 degrees.Alternative Hypothesis (Ha): The average temperature during July in Chattanooga is less than 80 degrees.Therefore, the correct choice is B as it has H0 as the average temperature is greater than 80 and Ha as the average temperature is less than 80.

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