A fitness center is interested in finding a 90% confidence i…

A fitness center is interested in finding а 90% cоnfidence intervаl fоr the meаn number оf days per week that Americans who are members of a fitness club go to their fitness center. Records of 220 members were looked at and their mean number of visits per week was 2.4 and the standard deviation was 2.1. Round your answers to TWO decimal places. A. To compute the confidence interval use a [response1] distribution. B.  What is the margin of error (maximum error)? [response6] C. With 90% confidence the population mean number of visits per week is between [response2] and [response3] visits. D. If many groups of 220 randomly selected members are studied, then a different confidence interval would be produced from each group. About [1-alpha] percent of these confidence intervals will contain the true population mean number of visits per week and about [alpha] percent will not contain the true population mean number of visits per week.