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

Question

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) $H _ { 0 } : p < 74 ^ { \circ } \mathrm { F }$

Quizplus · Accepted Answer

The null hypothesis is a statement of no effect or no difference, and it is denoted as $H _ { 0 } : \mu = 74 ^ { \circ } \mathrm { F }$, where $\mu$ represents the population mean.

A Formal Hypothesis Test Is to Be Conducted Using the Claim