Question: A recent Harris Interactive survey found that 92 0 of 1001

A recent Harris Interactive survey found that 92.0% of 1001 American adults said they always wash up after using the bathroom.
a. At the 5% significance level, do the data provide sufficient evidence to conclude that more than 9 of 10 Americans always wash up after using the bathroom?
b. Repeat part (a), using a 1% level of significance.

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  • CreatedAugust 13, 2015
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