To find: The confidence interval for the mean population.

Khaleesi Herbert 2021-01-08 Answered
To find: The confidence interval for the mean population.
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SkladanH
Answered 2021-01-09 Author has 80 answers
The total size of the sample of the high school athletes is 233. The meanof the times they spend on the practicing is 1.6 h and the standard deviation is 0.5 h. Obtain the z-value from the z-table of 99% confidence corresponding to the given mean and standard deviation is 2.576. The confidence interval for the mean populationis calculated as, C= x ± z × sn
=1.6 ± (2.576) (0.5233)
=1.6 ± 0.0084
=1.516, 1.684 Thus, the confidence interval for the mean population is 1.516  μ  1684.
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