Researchers want to examine the effect of diet on cholesterol level. They select a sample of 125 adult males who are vegetarians and test their cholesterol level to determine if it is significantly different from the average cholesterol level of all adult males without heart disease. The results are shown in the following table:

	Size	Mean	Standard Deviation
Sample	125	183.4	15
Population	-----	201.5	20

What is the test statistic or obtained value?

Group of answer choices

-52.25

-45.25

-10.12

-13.49