brownfish910Lv1
27 Nov 2021
Problem 20b
Page 556
Section: PRACTICE
Chapter 10: HYPOTHESIS TESTING WITH TWO SAMPLE
Textbook ExpertVerified Tutor
27 Nov 2021
Given information
Use the following information to answer the next exercises: The U.S. Center for Disease Control reports that the mean life expectancy was years for whites born in and years for nonwhites. Suppose that you randomly survey death records for people born in in a certain county. Of the whites, the mean life span was years with a standard deviation of years. Of the nonwhites, the mean life span was years with a standard deviation of years. Conduct a hypothesis test to see if the mean life spans in the county were the same for whites and nonwhites.
State the null and alternative hypotheses.
Step-by-step explanation
Step 1.
The null and alternative hypotheses are stated as follows:
Alternative hypotheses is as stated below,
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