Do one of the following, as appropriate:       (a) Find the critical value zα/2,       (b) find the critical value tα/2,       (c) state that neither the normal nor the t distribution applies. 99%; n = 17; σ is unknown; population appears to be normally distributed. Group of answer choices tα/2 =2.921 zα/2 =2.583 zα/2 = 2.567  Neither the normal nor the t distribution applies.

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Do one of the following, as appropriate:

      (a) Find the critical value zα/2,

      (b) find the critical value tα/2,

      (c) state that neither the normal nor the t distribution applies.

99%; n = 17; σ is unknown; population appears to be normally distributed.

Group of answer choices

tα/2 =2.921
zα/2 =2.583
zα/2 = 2.567 
Neither the normal nor the t distribution applies.
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