Twenty-five fast-food restaurant hourly employees were surveyed to see how many hours they worked per week, on average. The following data was obtained: 31, 43, 33, 20, 46, 52, 34, 26, 30, 40, 28, 44, 3, 46, 51, 43, 24, 31, 37, 55, 41, 42, 38, 24, 28 Construct a 99% confidence interval for the mean number of hours per week that the population of fast-food restaurant employees work. xˉ= s= α2= tα2= Margin of Error: E= We are 99% confident that fast-food restaurant hourly employees, on average, work between___ hours and  ___hours per week.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Twenty-five fast-food restaurant hourly employees were surveyed to see how many hours they worked per week, on average. The following data was obtained:

31, 43, 33, 20, 46, 52, 34, 26, 30, 40, 28, 44, 3, 46, 51, 43, 24, 31, 37, 55, 41, 42, 38, 24, 28

Construct a 99% confidence interval for the mean number of hours per week that the population of fast-food restaurant employees work.

xˉ=

s=

α2=

tα2=

Margin of Error: E=

We are 99% confident that fast-food restaurant hourly employees, on average, work between___ hours and  ___hours per week.

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