Solve the following problems. You may search for the table values for each case from the Internet. A. Determine if there is an outlier in this string of data using (1) Dixon's Q-test and (2) Grubb's test, both at 95% confidence level. {12.5, 12.7, 12.4, 12.9, 12.3, 12.4, 21.7} B1. Dr. No wanted to estimate the mean length of time that a patient had to wait to see him after arriving at the office. A random sample of 50 patients showed a mean no waiting time of 23.4 minutes and a standard deviation of 7.1 minutes. Find a 95% confidence interval for . B2. A sample of 12 strength values for stainless steel bars were taken, where the mean was found to be 3515 lb/in with a standard deviation of 395 lb/in. Because of misplaced records, it is not known whether the shipment is from company D, which has a design strength of 3850 lb/in2, or company M, which has a design strength of 3400 lb/in. Using a 90% confidence interval on the population mean, determine which company the shipment is from