· A marketing research firm has put together a health survey that it would like to administer to individuals in malls across the state. They need to estimate the mean time it takes to complete the survey so that recruiters can give potential participants an idea of their time commitments. The survey is administered to a random sample of 40 individuals. The mean time to complete the survey is 14.6 minutes with a standard deviation of 2.8 minutes. Estimate the mean time to complete the survey using a 95% confidence interval.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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· A marketing research firm has put together a health survey that it would like to administer to individuals
in malls across the state. They need to estimate the mean time it takes to complete the survey so that
recruiters can give potential participants an idea of their time commitments. The survey is administered
to a random sample of 40 individuals. The mean time to complete the survey is 14.6 minutes with a
standard deviation of 2.8 minutes. Estimate the mean time to complete the survey using a 95%
confidence interval.
Transcribed Image Text:· A marketing research firm has put together a health survey that it would like to administer to individuals in malls across the state. They need to estimate the mean time it takes to complete the survey so that recruiters can give potential participants an idea of their time commitments. The survey is administered to a random sample of 40 individuals. The mean time to complete the survey is 14.6 minutes with a standard deviation of 2.8 minutes. Estimate the mean time to complete the survey using a 95% confidence interval.
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