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

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Question 273038: 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):
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Find the critical value zc necessary to form a confidence interval at 97% level of confidence
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97% confidence has two tails with 1.5% in each
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zc = +-invNorm(0.015) = +-2.1701
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Cheers,
Stan H.