The cholesterol levels (in milligrams per deciliter) of three randomly selected adult males are 260, 315, and 295. What is the standard error of the mean of these three levels?

Question

Quizplus · Accepted Answer

The standard error of the mean (SEM) is calculated by dividing the standard deviation (SD) of the sample by the square root of the sample size (n). First, calculate the mean, then the SD, and finally the SEM. For these values, SEM = SD/√n = 27.84/√3 ≈ 16.07.

The Cholesterol Levels (In Milligrams Per Deciliter) of Three Randomly