A survey of 30 college students found that the average amount they slept per night was 7.2 hours. It is known that the population standard deviation is ? = 0.9 hours. Construct a 90% confidence interval for the mean number of hours slept per night by filling in the blanks: “We are ______% confident that the population mean ? is between ________ hours and ________ hours slept per night.”
A survey of 30 college students found that the average amount they slept per night was 7.2 hours. It is known that the population standard deviation is ? = 0.9 hours. Construct a 90% confidence interval for the mean number of hours slept per night by filling in the blanks: “We are ______% confident that the population mean ? is between ________ hours and ________ hours slept per night.”
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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A survey of 30 college students found that the average amount they slept per night was 7.2 hours. It is known that the population standard deviation is ? = 0.9 hours. Construct a 90% confidence interval for the
“We are ______% confident that the population mean ? is between ________ hours and ________ hours slept per night.”
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