SOLUTION: Find the critical value zc necessary to form a confidence interval at the level of confidence c=.80

SOLUTION: Find the critical value zc necessary to form a confidence interval at the level of confidence c=.80

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Question 1034038: Find the critical value zc necessary to form a confidence interval at the level of confidence c=.80
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
zc = 1.645 for 80% CI
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