A consumer group wants to estimate the monthly electricity consumption of households in a district. Assume the standard deviation of monthly household electricity usage in the district is 40 kwh. What sample size of households should be selected and surveyed to estimate the mean monthly household electricity consumption to within 15 kwh (margin of error) with 95% confidence?
A consumer group wants to estimate the monthly electricity consumption of households in a district. Assume the standard deviation of monthly household electricity usage in the district is 40 kwh. What sample size of households should be selected and surveyed to estimate the mean monthly household electricity consumption to within 15 kwh (margin of error) with 95% confidence?
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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A consumer group wants to estimate the monthly electricity consumption of
households in a district. Assume the standard deviation of monthly household
electricity usage in the district is 40 kwh. What
be selected and surveyed to estimate the mean monthly household electricity
consumption to within 15 kwh (margin of error) with 95% confidence?
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