Now answered: Testing Claims About Proportions. In Exercises 718, test the given claim

Chapter 9, Problem 17

(choose chapter or problem)

Testing Claims About Proportions. In Exercises 718, test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, Pvalue or critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim.Lefties In a random sample of males, it was found that 23 write with their left hands and 217 do not. In a random sample of females, it was foundthat 65 write with their left hands and 455 do not (based on data from The LeftHanded: Their Sinister History, by Elaine Fowler Costas, EducationResources Information Center, Paper 399519). We want to use a 0.01 significance level to test the claim that the rate of lefthandedness among malesis less than that among females.a. Test the claim using a hypothesis test.b. Test the claim by constructing an appropriate confidence interval.c. Based on the results, is the rate of lefthandedness among males less than the rate of lefthandedness among females?