Find the critical value z Subscript alpha divided by 2 z/2 that corresponds to the given confidence level.

89%

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Express the confidence interval 0.111 less than

pE.

ModifyingAbove p with caret plus or minus Upper E

pEequals

=? (plus or minus)?

(round to four decimal places)

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Express the confidence interval left parenthesis 0.056 comma 0.142 right parenthesis

(0.056,0.142) in the form of ModifyingAbove p with caret minus Upper E less than p less than ModifyingAbove p with caret plus Upper E

pE

?? less than p less than

?

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