A fitness center is interested in finding a 90% con fidence interval for the mean number of days per week that Americans who are members of a fitness dub go to their fitness center. Records of 222...

Extracted text: A fitness center is interested in finding a 90% con fidence interval for the mean number of days per week that Americans who are members of a fitness dub go to their fitness center. Records of 222 members were looked at and their mean number of visits per week was 2.3 and the standard deviation was 2.6. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a 2 distribution. b. With 90% con fidence the population mean number of visits per week is between and visits. c. If many groups of 222 randomly selected members are studied, then a different con fidence percent of these confidence ons interval would be produced from each group. About ve 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. ourse Submit Question e here to search G H