new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 66 women over the age of 50 used the new cream for 6 months. Of those 66 women, 43 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 α=0.05. test statistics z= rejection region z>: The final conclusion is A. There is not sufficient evidence to reject the null hypothesis that p=0.6. That is, there is not sufficient evidence to reject that the cream can improve the skin of more than 60% of women over 50. B. We can reject the null hypothesis that p=0.6 and accept that p>0.6. That is, the cream can improve the skin of more than 60% of women over 50.

new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 66 women over the age of 50 used the new cream for 6 months. Of those 66 women, 43 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 α=0.05. test statistics z= rejection region z>: The final conclusion is A. There is not sufficient evidence to reject the null hypothesis that p=0.6. That is, there is not sufficient evidence to reject that the cream can improve the skin of more than 60% of women over 50. B. We can reject the null hypothesis that p=0.6 and accept that p>0.6. That is, the cream can improve the skin of more than 60% of women over 50.

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Description: A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 66 women over the age of 50 used the new cream for 6 months. Of those 66 women, 43 of them reported skin improvement(as judged by a de

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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