Do One of the Following, as Appropriate: (A) Find the Critical

question 23

Multiple Choice

Do one of the following, as appropriate: (a) Find the critical value $z _ { \alpha / 2 }$ , (b) find the critical value $t _ { \alpha / 2 }$ .
$99 \% ; n = 17 ; \alpha$ is unknown; population appears to be normally distributed.

• A) \(z _ { \sigma / 2 } = 2.583\)
• B) \(z _ { \sigma / 2 } = 2.567\)
• C) \(t _ { \sigma / 2 } = 2.921\)
• D) \(t _ { \sigma / 2 } = 2.898\)

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