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Chapter: 8 / Q: 5
Serum cholesterol levels for two groups of Americans were recorded in 1989. The mean cholesterol levels of the two groups were compare To determine whether the measurements were significantly different or not, the most appropriate statistical test would be:
Chapter: 8 / Q: 6
In a descriptive study the mean is 220 and the standard error is 10, the 95 confidence limits would be:
Chapter: 8 / Q: 7
For a survey, a village is divided into 5 lanes, each lane is sampled randomly. It is an example of:
Chapter: 8 / Q: 8
The birth weights in a hospital are to be presented in a graph. This is best done by a:
Chapter: 8 / Q: 9
An analysis of the race of patients who visit an emergency room reveals that 40% are white, 25% are black, 20% are Native American, and 15% are Asian. These data would best be depicted graphically with a
Chapter: 8 / Q: 10
If six families were surveyed and the numbers of children per family were found to be 2, 3, 4, 4, 5, 6, fine the mean number of children per family
Chapter: 8 / Q: 11
If, in one of the groups of premature infants, the maximum value for hexosaminidase A was substituted with a much higher valu The value which is unlikely to be affected by this higher value is:
Chapter: 8 / Q: 12
A nutritional research team followed serum levels of vitamin B12 and folic acid in 125 children for five years to determine the association between cyanocobalamin deficiency and the subsequent risk of developing megaloblastic anemi The results were as follows:
Chapter: 8 / Q: 13
In study carried out in the hospital ward, every 10th admitted patient was included in the sample, which sampling procedure is this:
Chapter: 8 / Q: 14
Three groups of subjects were followed over the course of five years to compare treatments for sideroblastic anemi The most appropriate statistical analysis to determine the quantitative serologic differences resulting from these treatments would be a(n)
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