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Score on last attempt: 0 out of 1 Score in gradebook. 0 out of 1 Reattempt this question Question with last attempt is displayed for your review only There are 112 smokers in a random sample of 502 men, whereas 149 smokers are found in a random sample of 50 The samples are used to determine if there is strong evidence that proportion of smokers in men is other than that in women Provided ?dp-0.0277, what is the p-value of the sampling difference ? women. Lct pi, and p2 be the proportion of smokers in men and women respectively 0.00078 0,0078 0.0039 - 0.078 0.0156 1)

Explanation / Answer

Here the

sample proportion for men = 112/502 = 0.2232

sample proportion for women = 149/502 = 0.2968

Here

test statistic

Z = (0.2968 - 0.2232)/0.0277 = 2.657

P- value = 2 * Pr(Z > 2.657) = 0.0078

Option B is correct.

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