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(For questions 8, 9, and 10] - The old Nokia 3310 battery lasts 31 hours on standby. Nokia produces a new Nokia that is advertised to last longer than the Nokia 3310. This was tested by charging the new Nokia and letting it die 80 times - the average time for the battery to die was 33.5 hours, with a standard deviation of 4 hours. We want to find out how confident Nokia can be that the new phone lasts longer than the Nokia 3310. What is the null and alternative hypothesis? O HO: mean 33.5 and H1: mean < 33.5 | HO: mean < 33.5 and H1: mean 33.5 O HO: mean 31 and H1: mean 31 O HO: mean - 31 and H1: mean > 31

(For questions 8, 9, and 10] - The old Nokia 3310 battery lasts 31 hours on standby. Nokia produces a new Nokia that is advertised to last longer than the Nokia 3310. This was tested by charging the new Nokia and letting it die 80 times - the average time for the battery to die was 33.5 hours, with a standard deviation of 4 hours. We want to find out how confident Nokia can be that the new phone lasts longer than the Nokia 3310. What is the null and alternative hypothesis? O HO: mean 33.5 and H1: mean < 33.5 | HO: mean < 33.5 and H1: mean 33.5 O HO: mean 31 and H1: mean 31 O HO: mean - 31 and H1: mean > 31

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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[For questions 8, 9, and 10] - The old Nokia 3310 battery lasts 31 hours on standby. Nokia produces a new Nokia that is advertised to last longer than the Nokia 3310. This was tested by charging the new Nokia and letting it die 80 times – the average time for the battery to die was 33.5 hours, with a standard deviation of 4 hours. We want to find out how confident Nokia can be that the new phone lasts longer than the Nokia 3310. What is the null and alternative hypothesis? HO: mean = 33.5 and H1: mean < 33.5 HO: mean < 33.5 and H1: mean = 33.5 HO: mean = 31 and H1: mean + 31 HO: mean = 31 and H1: mean > 31
Transcribed Image Text:[For questions 8, 9, and 10] - The old Nokia 3310 battery lasts 31 hours on standby. Nokia produces a new Nokia that is advertised to last longer than the Nokia 3310. This was tested by charging the new Nokia and letting it die 80 times – the average time for the battery to die was 33.5 hours, with a standard deviation of 4 hours. We want to find out how confident Nokia can be that the new phone lasts longer than the Nokia 3310. What is the null and alternative hypothesis? HO: mean = 33.5 and H1: mean < 33.5 HO: mean < 33.5 and H1: mean = 33.5 HO: mean = 31 and H1: mean + 31 HO: mean = 31 and H1: mean > 31
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