In a random sample of six mobile devices, the mean repair cost was $80.00 and the standard deviation was $11.00. Assume the population s normally distributed and use a t-distribution to find the margin of error and construct a 90% confidence interval for the population mean. Interpret the results. The 90% confidence interval for the population mean u is (). (Round to two decimal places as needed.) The margin of error is $ (Round to two decimal places as needed.) Interpret the results. Choose the correct answer below. A. If a large sample of mobile devices are taken approximately 90% of them will have repair costs between the bounds of the confidence interval. B. With 90% confidence, it can be said that the population mean repair cost is between the bounds of the confidence interval. O C. It can be said that 90% of mobile devices have a repair cost between the bounds of the confidence interval. O D. With 90% confidence, it can be said that the repair cost is between the bounds of the confidence interval. Time Remaining: 02:59:14 Submit quiz