In a study to determine if diabetes mellitus is associate with blood group between 73 diabetes patients and 128 individuals, the observations are as follows;BLOOD GROUPDisease status O A B AB Total (Row)Non-diabetics 58 30 28 12 128Diabetics 32 16 15 10 73Total (Column) 90 46 43 22 201Is there any significant association between diabetes and blood group? Use Critical Value (CV) as 7.815
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The alternative hypothesis (H1) is that there is an association between diabetes and blood group. Show more…
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To examine whether a new medication can effectively lower blood glucose level among type 2 diabetic patients, a total of 30 patients were included in a study and their blood glucose levels were measured before entering the study and after a week of treatment, the alpha level was set at 0.05, two-tailed test. If t-test is used, what should be the degree freedom for the test? A. 28 B. 29 C. 14 D. 15
Marc L.
The following data represent glucose blood levels $(\mathrm{mg} / 100 \mathrm{ml})$ after a 12 -hour fast for a random sample of 70 women (Reference: American Journal of Clinical Nutrition, Vol. 19, pp. 345-351). Note: These data are also available for download at the Companion Sites for this text. $$\begin{aligned} &\\ &\begin{array}{cccccccc} 45 & 66 & 83 & 71 & 76 & 64 & 59 & 59 \\ 76 & 82 & 80 & 81 & 85 & 77 & 82 & 90 \\ 87 & 72 & 79 & 69 & 83 & 71 & 87 & 69 \\ 81 & 76 & 96 & 83 & 67 & 94 & 101 & 94 \\ 89 & 94 & 73 & 99 & 93 & 85 & 83 & 80 \\ 78 & 80 & 85 & 83 & 84 & 74 & 81 & 70 \\ 65 & 89 & 70 & 80 & 84 & 77 & 65 & 46 \\ 80 & 70 & 75 & 45 & 101 & 71 & 109 & 73 \\ 73 & 80 & 72 & 81 & 63 & 74 \end{array} \end{aligned}$$ Use six classes.
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Glucose concentrations in the blood above $110 \mathrm{mg} / \mathrm{dL}$ can be an early indication of several medical conditions, including diabetes. Suppose analyses of a series of blood samples from a patient at risk of diabetes produce the following results: $106,99,109,108,$ and $105 \mathrm{mg} / \mathrm{dL}$ a. What are the mean and the standard deviation of the data? b. Patients with blood glucose levels above $120 \mathrm{mg} / \mathrm{dL}$ are considered diabetic. Is this value within the $95 \%$confidence interval of these data?
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