Peter has been ruaring his pizza delivery business for the past six montiss, In an effort to better manage the planning of delivery workers, he wishes to estimate the mean time taken for the pizza defivery - from the time the order is submitted until the plaze is delivered to the doors.ep of his customers. A random sample of 64 orders is collected. The mean lime taken was 40.57 minutss. The population standard deviation is known to be 12.30 minutes. The mean time taken is assumed to be normally distr buted. A 99 . conifidence inlervil estimate is developed, using a criticat value of 2.58 State the best point estimate to be used as an estimate of the true mean. A. 48.68min Miv. State the reason why the Studen's t-distrbution is not used in the calculation of the B. Bf confidencet interval. Find the margin af error that wil be reported. Find the lower l lmit of the conf tence interval estamate. C. 123 min Find the upper limit of the confidench irterval estrmate. D. 4 67 min The confidence interval obtained is the sarrgle mean time taken for the pizza. Fi sample size is simall and kown delivery, is the statement true or false? Peter initially eshimaled that the true miean is 40.2 minues. is the statement true of 1.254min tales? - Eatee? The wath of the corifoence nitural will be isct sample size. is the stalement true of false? M. populabon standard deviation a brown willin 5 minuales, using the same contiderice lever? N. 50.54min