If the sample mean is 20,the population average is 10,and the standard error of the mean is 2,what is the observed z value?
A)-5
B)5
C)0
D)50

Name: If the sample mean is 20,the population average is 10,and the standard error of the mean is 2,what is the observed z value? A)-5 B)5 C)0 D)50
Brand: Quizplus
Rating: 5.0 (39 reviews)

Question

Quizplus · Accepted Answer

The observed z value can be calculated using the formula (sample mean-population mean)/standard error of mean. Thus, the observed z value is (20-10)/2 = 5.

If the Sample Mean Is 20,the Population Average Is 10,and