..1 T-Mobile Wi-Fi 11:30 AM 52%. - Shelia\'s doctor is concerned that she may su
ID: 2934470 • Letter: #
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..1 T-Mobile Wi-Fi 11:30 AM 52%. - 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. In a test to screen for gestational diabetes, a patient is classified as needing further testing for gestational diabetes if the glucose level is above 155 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 = 140 mg/dL and 14 mg/dL. (Round your answers to four decimal places.) (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 four separate days and the mean result is compared with the criterion 155 mg/dL, what is the probability that Shelia is diagnosed as needing further testing for gestational diabetes? My Notes Ask Your Te Light vehicles sold in a country must emit an average of no more than 0.1 grams per mile (g/mi) of nitrogen oxides (NOX) after 50,000 or fewer miles of driving. NOX emissions after 50,000 or fewer miles of driving for one car model vary Normally with mean 0.09 g/mi and standard deviation 0.01 g/mi (a) What is the probability that a single car of this model emits more than 0.1 g/mi of NOX? (Round your answer to four decimal places.) (b) A company has 64 cars of this model in its fleet. What is the probability that the average NOX level x of these cars is above 0.1 g/mi? (Round your answer to four decimal places.) You may need to use the appropriate Appendix Table to answer this question.Explanation / Answer
a) Mean = 140
SD = 14
z = (140 - 155)/14
z = - 3.75
P = 0.9999
b) z = (140 - 155)/14/2
z = - 7.5
P = 0.9999
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