Suppose 39 women used a skin cream for 22 weeks. At the end of the period, a der

Question

Suppose 39 women used a skin cream for 22 weeks. At the end of the period, a dermatologist judged whether each woman exhibited skin improvement. The results are shown to the right (where I = improved skin and N = no improvement). Complete parts a and b. a. Do the data provide sufficient evidence to conclude that the cream will improve the skin of more than 50% of women? Text using alpha = 0.10. What are the hypotheses for this test? A. H_0: p = 0.50: H_a: p > 0.50 B. H_0: p = 0.50: H_a: p notequalto 0.50 C. H_0: p notequalto 0.50: H_a: p = 0.50 D. H_0: p = 0.50: H_a: p

Explanation / Answer

the correct choice is

a) It is asked to test whether the use of skin cream will improve the skin for more than 50% women.

Ho: p= 0.5

Ha: P >0.5

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