In a sample of 241 adults, the average weekly salary was $841 with a population standard deviation of $56.74. Do not use the dollar sign for any of your answers. c.) What is the 84% confidence interval estimate of the mean salary for all adults? (round to the nearest whole number) d.) Does the interval suggest that the mean salary of all adults is more than $820?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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In a sample of 241 adults, the average weekly salary was $841 with a population standard deviation of $56.74. Do not use the
dollar sign for any of your answers.
e hes
c.) What is the 84% confidence interval estimate of the mean salary for all adults? (round to the nearest whole number)
d.) Does the interval suggest that the mean salary of all adults is more than $820?
O no
O yes
Transcribed Image Text:In a sample of 241 adults, the average weekly salary was $841 with a population standard deviation of $56.74. Do not use the dollar sign for any of your answers. e hes c.) What is the 84% confidence interval estimate of the mean salary for all adults? (round to the nearest whole number) d.) Does the interval suggest that the mean salary of all adults is more than $820? O no O yes
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