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

Question

Quizplus · Accepted Answer

The margin of error can be found by subtracting the lower bound of the confidence interval from the upper bound and dividing by 2.

Margin of Error = (Upper Bound - Lower Bound) / 2
Margin of Error = (18.3 - 13.4) / 2
Margin of Error = 2.45

Therefore, the margin of error is 2.45.

For Questions , Use the Following Narrative