[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 thebattery 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 < 33.5HO: mean < 33.5 and H1: mean = 33.5HO: mean = 31 and H1: mean + 31HO: mean = 31 and H1: mean > 31

Answered: Image /qna-images/answer/5cfa05e8-8370-4b68-a29d-afada6b9e5b5.jpg

Answered: (For questions 8, 9, and 10] - The old…

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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Suppose you are conducting a paired t test to determine whether or not caffeine has an effect on heart rate. You have a sample of 60 participants and they ingest no caffeine each day for a week. At the end of the week, you measure their heart rates and find the mean. Then, the same 60 participants are given 500mg of caffeine every day for a week and again, at the end of the week you measure their heart rates and find the mean. What would the null hypothesis be for this test?
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