14. [-/0.16 Points] DETAILS BBUNDERSTAT12 6.3.028.MI.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Police response time to an emergency call is the difference between the time the call is first received by the dispatcher and the time a patrol car radios that it has arrived at the scene. Over a long period of time, it has been determined that the police response time has a normal distribution with a me tribution with a mean of 11.2 minutes and a standard deviation of 2.1 minutes. For a randomly received emergency call, find the following probabilities. (Round your answers to four decimal places.) USE SALT (a) the response time is between 7 and 13 minutes (b) the response time is less than 7 minutes (c) the response time is more than 13 minutes Need Help? Reed It Master It 15. [-/0.16 Points] DETAILS BBUNDERSTAT12 6.3.029.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Quick Start Company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a Quick Start battery is normally distributed, with a mean of 45.8 months and a standard deviation of 8.5 months. LA USE SALT (a) If Quick Start guarantees a full refund on any battery that fails within the 36-month period after purchase, what percentage of its batteries will the company expect to replace? (Round your answer to two decimal places.) (b) If Quick Start does not want to make refunds for more than 8% of its batteries under the full-refund guarantee policy, for how long should the company guarantee the batteries (to the nearest month)? months Need Help? Read !1 Watch 16. [-/0.3 Points] DETAILS BBUNDERSTAT12 6.3.038.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The amount of money spent weekly on cleaning, maintenance, and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed, with mean , = $613 and standard deviation o = $41. LA USE SALT (a) If $646 is budgeted for next week, what is the probability that the actual costs will exceed the budgeted amount? (Round your answer to four decimal places.) (b) How much should be budgeted for weekly repairs, cleaning, and maintenance so that the probability that the budgeted amount will be exceeded in a given week is only 0.06? (Round your answer to the nearest dollar.) Need Help? Rass !! Submit Assignment Save Assignment Progress MacBook Air 30 388 % W 5 6