You are interested in finding a 90% confidence interval for the mean number of visits for physical therapy patients. The data below show the number of visits for 15 randomly selected physical therapy patients. |2211|514|2618|25 23|22 22|2o 23|1112|2o a. To compute the confidence interval use a ? distribution. b. With 90% confidence the population mean number of visits per physical therapy patient is between C] and C] visits. c. If many groups of 15 randomly selected physical therapy patients are studied, then a different confidence interval would be produced from each group. About C] percent of these confidence intervals will contain the true population mean number of visits per patient and about C] percent will not contain the true population mean number of visits per patient