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In 2011, the "average" Tasmanian 12-year-old spent 144 mins on the internet per day using a mobile phone. You wish to determine if the 2021 average is different to 2011. You construct a simple random sample with 30 such observations. The data is found in the table below. ...... a. Is there evidence that the current true mean is different to the mean of 144 minutes in 2011? Use the p-value approach with a level of significance of 0.01. State the null and alternative hypotheses. Ο Α. Ηo μ2 144 H,: µ< 144 О в. На: и3 144 H,: µ# 144 OC. Ho: HS 144 H,: µ> 144 O D. Ho: H# 144 H,: µ = 144

In 2011, the "average" Tasmanian 12-year-old spent 144 mins on the internet per day using a mobile phone. You wish to determine if the 2021 average is different to 2011. You construct a simple random sample with 30 such observations. The data is found in the table below. ...... a. Is there evidence that the current true mean is different to the mean of 144 minutes in 2011? Use the p-value approach with a level of significance of 0.01. State the null and alternative hypotheses. Ο Α. Ηo μ2 144 H,: µ< 144 О в. На: и3 144 H,: µ# 144 OC. Ho: HS 144 H,: µ> 144 O D. Ho: H# 144 H,: µ = 144

MATLAB: An Introduction with Applications
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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In 2011, the "average" Tasmanian 12-year-old spent 144 mins on the internet per day using a mobile phone. You wish to determine if the 2021 average is different to 2011. You construct a simple random sample with 30 such observations. The data is found in the table below. .... a. Is there evidence that the current true mean is different to the mean of 144 minutes in 2011? Use the p-value approach with a level of significance of 0.01. State the null and alternative hypotheses. Ο Α. H μ2 144 H,: µ< 144 О в. На: и3 144 H,: µ# 144 OC. Ho: HS 144 H; μ 144 O D. Hg: H# 144 Η; μ 144
Transcribed Image Text:In 2011, the "average" Tasmanian 12-year-old spent 144 mins on the internet per day using a mobile phone. You wish to determine if the 2021 average is different to 2011. You construct a simple random sample with 30 such observations. The data is found in the table below. .... a. Is there evidence that the current true mean is different to the mean of 144 minutes in 2011? Use the p-value approach with a level of significance of 0.01. State the null and alternative hypotheses. Ο Α. H μ2 144 H,: µ< 144 О в. На: и3 144 H,: µ# 144 OC. Ho: HS 144 H; μ 144 O D. Hg: H# 144 Η; μ 144
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