value ta/2.(b) find the critical value za/2 or (c) state that neither the normal distribution nor the t distribution (Round to two decimal places as needed.) value ta/2.(b) find the critical...

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value ta/2.(b) find the critical value za/2 or (c) state that neither the normal distribution nor the t distribution (Round t

math Statistics-And-Probability

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Answer 1

Answer #1

Here population standard deviation is known so we have to use one sample z-confidence interval.

So we have to find z critical value.

Confidence level = 0.95

B) $z_{\alpha /2}$ = 1.96

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Answer 2

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value ta/2.(b) find the critical value za/2 or (c) state that neither the normal distribution nor the t distribution (Round to two decimal places as needed.) value ta/2.(b) find the critical...

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value ta/2.(b) find the critical value za/2 or (c) state that neither the normal distribution nor the t distribution (Round to two decimal places as needed.) value ta/2.(b) find the critical...