Question

We would like to study the cholesterol level of adults. Our sample of 64 adults shows the sample mean of 184 and standard deviation 20. The standard error of the mean, SEM, is

a. 2.5
b. 3.2
c. 4.0
d. 5.0

Answer 1

The standard error of the mean (SEM) can be calculated using the formula: SEM = Standard Deviation / Square Root of Sample Size. In this scenario, the sample mean is 184 and the standard deviation is 20 for a sample size of 64. Therefore, the correct answer is a. 2.5.

Step-by-step explanation:

The standard error of the mean (SEM) can be calculated using the formula:

SEM = Standard Deviation / Square Root of Sample Size

In this scenario, the sample mean is 184 and the standard deviation is 20 for a sample size of 64. To calculate the SEM:

SEM = 20 / Square Root of 64 = 2.5