A Formal Hypothesis Test Is to Be Conducted Using the Claim

A formal hypothesis test is to be conducted using the claim that the mean AC thermostat setting in restaurants is equal to $74 ^ { \circ } \mathrm { F }$ What is the null hypothesis and how is it denoted?

A) $H _ { 0 } : \mu = 74 ^ { \circ } \mathrm { F }$
B) $H _ { 0 } : \mu \neq 74 ^ { \circ } \mathrm { F }$
C) $H _ { 0 } : p = 74 ^ { \circ } \mathrm { F }$
D) $H _ { 0 } : p < 74 ^ { \circ } \mathrm { F }$

Correct Answer:

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