A fitness center is interested in finding a 98% confidence interval for the standard deviation of the number of days per week that their members come in. Records of 27 members were looked at and the standard deviation was 2.8. Use 3 decimal places in your answer.a. To compute the confidence interval use a distribution.b. With 98% confidence the population standard deviation number of visits per week is between and visits.c. If many groups of 27 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population standard deviation number of visits per week and about percent will not. A fitness center is interested in finding a 98% confidence interval for the standarddeviation of the number of days per week that their members come in. Records of 27members were looked at and the standard deviation was 2.8. Use 3 decimal places inyour answer.a. To compute the confidence interval use ab. With 98% confidence the population stand tbetweenandvisits. ZSelect an answerSelect an answerdistribution.ber of visits per week isChi-Squaredc. If many groups of 27 randomly selected members are studied, then a differentconfidence interval would be produced from each group. Aboutpercent ofthese confidence intervals will contain the true population standard deviation numberof visits per week and aboutpercent will not.

standard deviation(s)=2.8 confidence level=98% sample size(n)=27

Answered: A fitness center is interested in…

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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A fitness center is interested in finding a 98% confidence interval for the standard deviation of the number of days per week that their members come in. Records of 27 members were looked at and the standard deviation was 2.8. Use 3 decimal places in your answer.

a. To compute the confidence interval use a distribution.

b. With 98% confidence the population standard deviation number of visits per week is between and visits.

c. If many groups of 27 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population standard deviation number of visits per week and about percent will not.