Question

In a random sample of males, it was found that 28 write with their left hands and 223 do not. In a random sample of females, it was found that 70 write with their left hands and 461 do not. Use a 0.05 significance level to test the claim that the rate of left-handedness among males is less than that among females. Complete parts (a) through (c) below Identify the P-value P-value Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The Palueis less an thes gni cance level ?:005, so re e tre nullhypotess There issu cent o net support e ai tratterte er ande essa mon males sessmant among maes b. Test the claim by constructing an appropriate confidence interval. The 90% confidence interval is (p1-P2)" D Round to three decimal places as needed.) What is the conclusion based on the confidence interval? Because the confidence interval limits do not include 0, it appears that the two rates of left-handedness are not equal. Thereis sufficient evidence to support the claim that the rate of left-handedness among males is less than that among Temales c. Based on the results, is the rate of left-handedness among males less than the rate of left-handedness among females? A. The rate of left-handedness among B. The rate of let-handedness among males does appear to be less than the rate of lerl-handedness among females because the results are statistically significant C. The rate of left-handedness among males does appear to be less than the rate of left-handedness among females because the results are not statistically significant. D. The results are inconclusive males does not appear to be less than the rate of left-handedness among females.

Answer 1

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