For Questions , Use the Following Narrative

Multiple Choice

For Questions , use the following narrative
Narrative: Male weight loss
Suppose a 95% confidence interval for the average amount of weight loss on a diet program for males is between 13.4 and 18.3 pounds.These results were based on a sample of 42 male participants who were deemed to be overweight at the start of the 4-month study.
-{Male weight loss narrative} What is the standard error of the sample mean?

A) 4.9
B) 2.45
C) 1.225
D) None of the above