SOLUTION: 1. Find the critical value zc necessary to form a confidence interval at 97% level of confidence

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Question 270108: 1. Find the critical value zc necessary to form a confidence interval at 97% level of confidence
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Ans: Each tail is (1/2)3% = 0.015

Using a TI-84 I get invNorm(0.985) = 2.1770
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Cheers,
Stan H.