Question
Homework7: Problem 9 Previous Problem List Next s doctor is concemed that she may suffer from gestational dabotes (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 f the glucose level is above 140 miligrams per deciter ane hour after a sugary drink is drink varies acc distribution with mean 129 mgldl and standard deviation 10 mgidl. Let L denote a patent's glucose level (a) If measurements are made on three dMerent days, find the leval L such that there is probability only 0.01 that the mean glucose level of three test results falls above L for Shela's glucose level distribuion. What is the value of L ANSWER (b) If the mean result from the three tests is compared to the criterion 140 mg/'d, what is the probability that Shelia is diagnosed as having gestational diabetes? ANSWER Note: You can eam partal credit on this problem You have attempted this problem 0 times You have 3 attempts remaining
Explanation / Answer
a) Critical value at 0.01 level is 2.326348
L = 2.326348*10+129 = 152.2635
b) P ( X>140)
= P( Z>(140-129)/10)
= 0.1357 ( rounded to four places of decimal)
