4) If I asked a group of 87 people and the sample mean was 6.7 hours and sample standard deviation is 0.3, can I claim that the average amount of sleep is 7 hours? Use a significance level of 0.05.

MATLAB: An Introduction with Applications
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4) If I asked a group of 87 people and the sample mean was 6.7 hours and sample standard
deviation is 0.3, can I claim that the average amount of sleep is 7 hours? Use a
significance level of 0.05.
wwwm
Transcribed Image Text:4) If I asked a group of 87 people and the sample mean was 6.7 hours and sample standard deviation is 0.3, can I claim that the average amount of sleep is 7 hours? Use a significance level of 0.05. wwwm
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