11/9/2020 MyOpenMath 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 selected death records for white and nonwhite people born in 1900 from a certain county is conducted. Of the 118 whites surveyed, the mean life span was 46 years with a standard deviation of 11.8 years and of the 95 nonwhites, the mean life span was 37.9 years with a standard deviation of 14 years. Conduct a hypothesis test at the 0.01 level of significance to determine whether there was no difference in mean life spans in the county for whites and nonwhites in year 1900. Suppose a survey of randomly Preliminary: a. Is it safe to assume that nw <5% of all white people born in 1900 and nnw < 5 % of all nonwhite people born in 1900? No

11/9/2020 MyOpenMath 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 selected death records for white and nonwhite people born in 1900 from a certain county is conducted. Of the 118 whites surveyed, the mean life span was 46 years with a standard deviation of 11.8 years and of the 95 nonwhites, the mean life span was 37.9 years with a standard deviation of 14 years. Conduct a hypothesis test at the 0.01 level of significance to determine whether there was no difference in mean life spans in the county for whites and nonwhites in year 1900. Suppose a survey of randomly Preliminary: a. Is it safe to assume that nw <5% of all white people born in 1900 and nnw < 5 % of all nonwhite people born in 1900? No

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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) Suppose a survey of randomly selected death records for white and nonwhite people born in 1900 from a certain county is conducted. Of the 110 whites surveyed, the mean life span was 48.2 years with a standard deviation of 11.2 years and of the 95 nonwhites, the mean life span was 39.3 years with a standard deviation of 16 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: Is it safe to assume thatnw≤5% of all white people born in 1900 andnnw≤5% of all nonwhite people born in 1900? No Yes Is nw≥30 and nnw≥30 ? No Yes Test the claim: Determine the null and alternative hypotheses. H0: μw μnw Ha: μw μnw Determine the test statistic. Round to four…
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