SOLUTION: Im not understanding this question For a group of 22 college football players the mean heart rate after a morning workout session was 86 beats per minute and the stnadard deviatio

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Question 462049: Im not understanding this question
For a group of 22 college football players the mean heart rate after a morning workout session was 86 beats per minute and the stnadard deviation was 5. Find the 90% confidence interval of the tru mena for all college football players after a workout session. If a coach did not want to work his team beyond its capacity what maximum values should he use for the mean number of heartbeats per minute?

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
For a group of 22 college football players the mean heart rate after a morning workout session was 86 beats per minute and the stnadard deviation was 5. Find the 90% confidence interval of the tru mena for all college football players after a workout session. If a coach did not want to work his team beyond its capacity what maximum values should he use for the mean number of heartbeats per minute?
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x-bar = 86
ME = 1.645*5/sqrt(22) = 1.7536
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90% CI: 86-1.7536 < u < 86+1.7536
90% CI: 84.25 < u < 87.75
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Cheers,
Stan H.
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