UOL distribution between 0 and 1 minutes which has a with a mean of 0.5 min and standard devi 0.2887 min a. Describe the sampling distribution of the mean wait time for SRSs of size 31 b. What is the probability a SRS of 31 people will have an average wait less than 0.4 minutes for an elevator? 2. Shelia's doctor is concerned that she may suffer from gestational diabetes (high blood glucose levels during pregnancy). There is variation both in the actual glucose level and in the blood test that measures the level. A patient is classified as having gestational diabetes if the glucose level is above 140 milligrams per deciliter (mg/dl) one hour after a sugary drink Shelia's measured glucose level one hour after the sugary drink varies according to the Normal distribution with = 125 mg/dl and a = 11 mg/dl. a. If a single glucose measurement is made, what is the probability that Shelia is diagnosed as having gestational diabetes? b. If measurements are made on 3 separate days and the mean result is compared with the criterion 140 mg/dl, what is the probability that Shelia is diagnosed as having gestational diabetes