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A sample of 66 women over the age of 50 used the new cream for 6 months. Of those 66 women, 30 of them reported skin improvement(as judged by a dermatologist). Is this evidence that the cream will improve the skin of more than 60% of women over the age of 50? Test using ?=0.01.

test statistics z= ____.

rejection region z>____.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91001060

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