To investigate the risk factors associated with developing gestationaldiabetes mellitus (GDM), 4320 women in the UK were monitored in astudy from their twelfth week of pregnancy until delivery. Of these, 633were diagnosed with GDM and the remaining 3687 were non-GDMs.One of the risk factors investigated was the age, in years, of the women.The sample mean age of the 633 women who developed GDM was31.9 years with a sample standard deviation of 5.16 years. The samplemean and standard deviation of the ages of the 3687 non-GDM womenwere 30.36 years and 5.21 years respectively.(a) Show that it is appropriate to assume that the populationvariances are equal, and calculate the pooled estimate of thecommon population standard deviation.(b) A 95% confidence interval for the underlying difference betweenthe mean age of women who develop GDM and non-GDM womenwas calculated to be (1.10, 1.98). Using this information what canyou conclude about the difference in mean ages of the GDM andnon-GDM women?

Given information isGDM : n1 = 633 s1 = 5.16And Non GDM : n2 = 3687 s2 = 5.21

Answered: To investigate the risk factors…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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IS IT REASONABLE TO ASSUME THIS SAMPLE CAME FROM A NORMAL POPULATION?
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