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A Gallup poll asked 18 teenagers aged 13 to 17, "Typically, how many hours per week do you spend watching TV?" Survey results indicate that, on average, teenagers typically watch 30 hours of TV per week with a standard deviation of 9. Construct a 98% confidence interval for the mean number of hours of TV that teenagers watch each week. Round your answers to three decimal places, and use four decimal places for any interim calculations. We are 98% confident that the interval hours per week teenagers spend watching TV. contains the true population mean μ of Which conditions are required for the validity of the interval? Select all that apply. σ known Random sample fl known O Normal population

A Gallup poll asked 18 teenagers aged 13 to 17, "Typically, how many hours per week do you spend watching TV?" Survey results indicate that, on average, teenagers typically watch 30 hours of TV per week with a standard deviation of 9. Construct a 98% confidence interval for the mean number of hours of TV that teenagers watch each week. Round your answers to three decimal places, and use four decimal places for any interim calculations. We are 98% confident that the interval hours per week teenagers spend watching TV. contains the true population mean μ of Which conditions are required for the validity of the interval? Select all that apply. σ known Random sample fl known O Normal population

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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A Gallup poll asked 18 teenagers aged 13 to 17, "Typically, how many hours per week do you spend watching TV?" Survey results indicate that, on average, teenagers typically watch 30 hours of TV per week with a standard deviation of 9. Construct a 98% confidence interval for the mean number of hours of TV that teenagers watch each week. Round your answers to three decimal places, and use four decimal places for any interim calculations. We are 98% confident that the interval ( hours per week teenagers spend watching TV. Which conditions are required for the validity of the interval? Select all that apply. o known Random sample Ou known н contains the true population mean μ of Normal population
Transcribed Image Text:A Gallup poll asked 18 teenagers aged 13 to 17, "Typically, how many hours per week do you spend watching TV?" Survey results indicate that, on average, teenagers typically watch 30 hours of TV per week with a standard deviation of 9. Construct a 98% confidence interval for the mean number of hours of TV that teenagers watch each week. Round your answers to three decimal places, and use four decimal places for any interim calculations. We are 98% confident that the interval ( hours per week teenagers spend watching TV. Which conditions are required for the validity of the interval? Select all that apply. o known Random sample Ou known н contains the true population mean μ of Normal population
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