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0 Question 1 v The U.S. Center for Disease Control reports that in year 1900, the mean life expectancy is 47.6 years for whites and

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0 Question 1 v The U.S. Center for Disease Control reports that in year 1900, the mean life expectancy is 47.6 years for whites and 33 years for nonwhites. (Click here for reference data 51') Suppose a survey of randomly selected death records for white and nonwhite people born in 1900 from a certain county is conducted. 0f the 124 whites surveyed, the mean life span was 47.5 years with a standard deviation of 11.4 years and of the 88 nonwhites, the mean life span was 37.5 years with a standard deviation of 15.5 years. Conduct a hypothesis test at the 0.05 level of significance to determine whether there was no difference in mean life spans in the county for whites and nonwhites in year 1900. Preliminary: a. Is it safe to assume that \"w 5 5 % of all white people born in 1900 and \"mu 5 5 % of all nonwhite people born in 1900? No Yes b. lsnw 2 30andnm 2 30? No Yes Test the claim: a. Determine the null and alternative hypotheses. Ho! Mam pm Ha: \"mm :u'nw b. Determine the test statistic. Round to four decimal places. . = :1 c. Find the p-value. Round to 4 decimals. d. Make a decision. Reject the null hypothesis. Fail to reject the null hypothesis. e. Write the conclusion. There is not sufficient evidence to support the claim that whites and nonwhites have different mean life spans. There is sufficient evidence to support the claim that whites and nonwhites have different mean life spans. Question Help: 8 Message instructor

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