Question

QUESTION 13

1. Suppose that the point estimate for the percentage of students who work out regularly (at least 3 times per week) is 72.5%. If 300 students were used for this sample, find the margin of error using a 90% confidence level.

   		2.6%
   		4.2%
   		5.1%
   		6.6%

   QUESTION 14

2. Suppose that the point estimate for the percentage of students who have been to Europe is 8.6%. If 150 students were used for this sample, find the margin of error using a 99% confidence level.

   		2.3%
   		4.5%
   		5.9%
   		7.3%

   QUESTION 15

3. Which level of confidence below will give you the smallest margin of error?

   	A.	90%
   	B.	95%
   	C.	99%

   QUESTION 16

4. Which level of confidence below is used most often by researchers?

   	A.	90%
   	B.	95%
   	C.	99%

Answer 1