Determine the sampling error if the grade point averages for 10 randomly selected students from a class of 125 students has a mean of $\bar { x }$ = 2.8. Assume the grade point average of the 125 students has a mean of $\mu$ ? = 3.5.
A)0.7
B)3.15
C)-0.7
D)2.45

Question

Quizplus · Accepted Answer

Sampling error is calculated as the difference between the sample mean and the population mean, which is $2.8 - 3.5 = -0.7$. However, the absolute value of this difference is taken to represent the magnitude of the error, making the correct answer $0.7$.

Determine the Sampling Error If the Grade Point Averages for 10