In a random sample of five mobile devices, the mean repair cost was $70.00 and the standard deviation was $12.00. Assume the population is normally distributed and use a t-distribution to find the margin of error and construct a 90% confidence interval for the population mean. Interpret the results. The 90% confidence interval for the population mean μ is (____________ , ______________) (round to two decimal places) The margin of error is _________
In a random sample of five mobile devices, the mean repair cost was $70.00 and the standard deviation was $12.00. Assume the population is normally distributed and use a t-distribution to find the margin of error and construct a 90% confidence interval for the population mean. Interpret the results. The 90% confidence interval for the population mean μ is (____________ , ______________) (round to two decimal places) The margin of error is _________
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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I need help with stats/2023 section 6.2; (please help with TI-84 commands) thank you
In a random sample of
five
mobile devices, the
$70.00
and the standard deviation was
$12.00.
Assume the population is
90%
confidence interval for the population mean. Interpret the results.
The
90%
confidence interval for the population mean
μ
is (____________ , ______________) (round to two decimal places)
The margin of error is _________
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