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4. Find the critical value Z a/2 that corresponds to the given confidence level. 81​% Z...

4. Find the critical value Z a/2 that corresponds to the given confidence level.

81​%

Z a/2=____

(Round to two decimal places as​ needed.)

5. Express the confidence interval 0.555<p<0.777 in the form ˆp ± E

ˆp ± E=____±____

6. Express the confidence interval (0.073,0.117) in the form of ˆp- E< p < ˆp + E

____<p<____

​(Type integers or​ decimals.)

Math   Statistics-And-Probability   
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