Find the requested mean or standard deviation.
-The mean score on the exit examination for an urban high school is 63 with a standard deviation of 6. What is the standard deviation of the resulting distribution of sample means for n = 9?

Question

Quizplus · Accepted Answer

The standard deviation of the distribution of sample means, also known as the standard error, is calculated by dividing the population standard deviation by the square root of the sample size (n). Here, it is 6 / sqrt(9) = 6 / 3 = 2.

Find the Requested Mean or Standard Deviation