You design a clinical trial in which you plan to enroll individuals with total c

Question

You design a clinical trial in which you plan to enroll individuals with total cholesterol >200 mg/dL, and randomly assign some patients to take a new cholesterol-lowering drug, and others to placebo. The baseline cholesterol levels (mg/dL) of the first 11 patients recruited for your study are below. Determine whether you should report the mean +/- SD or the median (IQR) for these data.

Select one:

a. You should report the median(IQR) because it is similar to the mode.

b. You should report the mean +/- SD, because the median is only based on ranks and therefore contains less information.

c. You should report the mean +/- SD, because the mean, median and mode are all similar and the data are normally distributed.

d. None of the other answer choices are true

e. You should report the median(IQR), because the data appear to contain one or more outliers and are not normally distributed.

Select one:

a. You should report the median(IQR) because it is similar to the mode.

b. You should report the mean +/- SD, because the median is only based on ranks and therefore contains less information.

c. You should report the mean +/- SD, because the mean, median and mode are all similar and the data are normally distributed.

d. None of the other answer choices are true

e. You should report the median(IQR), because the data appear to contain one or more outliers and are not normally distributed.

Explanation / Answer

Option B is correct.

You should report mean +/- SD, because the median is only based on ranks and therefore contains less information.

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