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According to the Center for Disease Control and Prevention (CDC), the mean life expectancy in 2015 for Hispanic females was 84.3 years. Assume that the standard deviation was 15 years, as suggested by the Bureau of Economic Research. The distribution of age at death, X, is not normal because it is skewed to the left. Nevertheless, the distribution of the mean, x, in all possible samples of size n is approximately normal if n is large enough, by the central limit theorem. Suppose that Esmé is a researcher for a large, for-profit hospital company. She takes a simple random sample of n = 100 Hispanic females obtained from all death records over the past year. Determine the sample mean, x, such that the probability is 99% that the mean in Esmé's sample will be greater than x. You may find a table of critical values useful. Give your answer to the precise to one decimal place. years

According to the Center for Disease Control and Prevention (CDC), the mean life expectancy in 2015 for Hispanic females was 84.3 years. Assume that the standard deviation was 15 years, as suggested by the Bureau of Economic Research. The distribution of age at death, X, is not normal because it is skewed to the left. Nevertheless, the distribution of the mean, x, in all possible samples of size n is approximately normal if n is large enough, by the central limit theorem. Suppose that Esmé is a researcher for a large, for-profit hospital company. She takes a simple random sample of n = 100 Hispanic females obtained from all death records over the past year. Determine the sample mean, x, such that the probability is 99% that the mean in Esmé's sample will be greater than x. You may find a table of critical values useful. Give your answer to the precise to one decimal place. years

MATLAB: An Introduction with Applications
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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According to the Center for Disease Control and Prevention (CDC), the mean life expectancy in 2015 for Hispanic females was 84.3 years. Assume that the standard deviation was 15 years, as suggested by the Bureau of Economic Research. The distribution of age at death, X, is not normal because it is skewed to the left. Nevertheless, the distribution of the mean, x, in all possible samples of size n is approximately normal if n is large enough, by the central limit theorem. Suppose that Esmé is a researcher for a large, for-profit hospital company. She takes a simple random sample of n = 100 Hispanic females obtained from all death records over the past year. Determine the sample mean, x, such that the probability is 99% that the mean in Esmé's sample will be greater than x. You may find a table of critical values useful. Give your answer to the precise to one decimal place.. x = years
Transcribed Image Text:According to the Center for Disease Control and Prevention (CDC), the mean life expectancy in 2015 for Hispanic females was 84.3 years. Assume that the standard deviation was 15 years, as suggested by the Bureau of Economic Research. The distribution of age at death, X, is not normal because it is skewed to the left. Nevertheless, the distribution of the mean, x, in all possible samples of size n is approximately normal if n is large enough, by the central limit theorem. Suppose that Esmé is a researcher for a large, for-profit hospital company. She takes a simple random sample of n = 100 Hispanic females obtained from all death records over the past year. Determine the sample mean, x, such that the probability is 99% that the mean in Esmé's sample will be greater than x. You may find a table of critical values useful. Give your answer to the precise to one decimal place.. x = years
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