A Test Is Made Of $H _ { 0 } : \mu = 69 \text { versus } H _ { 1 } : \mu \neq 69$

question 4

Multiple Choice

A test is made of $H _ { 0 } : \mu = 69 \text { versus } H _ { 1 } : \mu \neq 69$
A sample of size n=72 is drawn, and $\bar { x } = 70$ The population standard deviation is $\sigma = 27$ Compute the value of the test statistic z .

• A) 0.04
• B) 1.63
• C) 0.62
• D) 0.31

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