A normal population has a mean of $80 and standard deviation of $12. You select random
samples of nine. What is the standard error of the sampling distribution of sample means? a. 6.67
b. 8.23 c. 4 d. 12.
Mattingly "AI & Prompt Design: Large Language Models"
Standard Error of Sample Means for Normal Population
1. A normal population has a mean of $80 and standard deviation of $12. You select random
samples of nine. What is the standard error of the sampling distribution of sample means? a. 6.67
b. 8.23 c. 4 d. 12