A weather forecaster stated that the average temperature during July in Florida

Question

A weather forecaster stated that the average temperature during July in Florida is 90 degrees. A sample of 32 Julys is taken. The correct set of hypotheses is A. Upper H 0 : mu not equals 90 Superscript o Baseline Upper H Subscript a Baseline : mu equals 90 Superscript o B. Upper H 0 : mu greater than or equals 90 Superscript o Baseline Upper H Subscript a Baseline : mu less than 90 Superscript o C. Upper H 0 : mu equals 90 Superscript o Baseline Upper H Subscript a Baseline : mu not equals 90 Superscript o D. Upper H 0 : mu greater than 90 Superscript o Baseline Upper H Subscript a Baseline : mu less than 90 Superscript o

Explanation / Answer

Here the claim is the average temperature during July in Florida is 90 degrees
hence, null hypothesis is H0: mu = 90
and alternate hypothesis is Ha: mu not equals 90

Option C is correct

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