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ess center is interested in finding a 98% confidence interval for the mean number of days week that Americans who are members of a fitness club go to their fitness center. Records of members were looked at and their mean number of visits per week was 2.1 and the standard tion was 2.9. compute the confidence interval use a interval use a ? distribution. th 98% confidence the population mean number of visits per week is between visits. and many groups of 268 randomly selected members are studied, then a different confidence wal would be produced from each group. About percent of these confidence vals will contain the true population mean number of visits per week and about

ess center is interested in finding a 98% confidence interval for the mean number of days week that Americans who are members of a fitness club go to their fitness center. Records of members were looked at and their mean number of visits per week was 2.1 and the standard tion was 2.9. compute the confidence interval use a interval use a ? distribution. th 98% confidence the population mean number of visits per week is between visits. and many groups of 268 randomly selected members are studied, then a different confidence wal would be produced from each group. About percent of these confidence vals will contain the true population mean number of visits per week and about

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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A fitness center is interested in finding a 98% confidence interval for the mean number of days per week that Americans who are members of a fitness club go to their fitness center. Records of 268 members were looked at and their mean number of visits per week was 2.1 and the standard deviation was 2.9. a. To compute the confidence interval use a ? distribution. b. With 98% confidence the population mean number of visits per week is between visits. and c. If many groups of 268 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 mean number of visits per week and about percent will not contain the true population mean number of visits per week.
Transcribed Image Text:A fitness center is interested in finding a 98% confidence interval for the mean number of days per week that Americans who are members of a fitness club go to their fitness center. Records of 268 members were looked at and their mean number of visits per week was 2.1 and the standard deviation was 2.9. a. To compute the confidence interval use a ? distribution. b. With 98% confidence the population mean number of visits per week is between visits. and c. If many groups of 268 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 mean number of visits per week and about percent will not contain the true population mean number of visits per week.
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