You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on constructing a confidence interval; however, you are not sure how many citizens should be included in the sample. If you want your sample estimate to be within 3 years of the actual mean with a confidence level of 94%, how many citizens should be included in your sample? Assume that the standard deviation of the ages of all the citizens in this community is 25 years. Sample Size:

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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You are interested in estimating the the mean age of the citizens living in your community. In order to do
this, you plan on constructing a confidence interval; however, you are not sure how many citizens should be
included in the sample. If you want your sample estimate to be within 3 years of the actual mean with a
confidence level of 94%, how many citizens should be included in your sample? Assume that the standard
deviation of the ages of all the citizens in this community is 25 years.
Sample Size:
Transcribed Image Text:You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on constructing a confidence interval; however, you are not sure how many citizens should be included in the sample. If you want your sample estimate to be within 3 years of the actual mean with a confidence level of 94%, how many citizens should be included in your sample? Assume that the standard deviation of the ages of all the citizens in this community is 25 years. Sample Size:
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