Math Question 4

Question

Given the interval estimate for the mean (5.2, 15.2), the point estimate for the mean is , and the margin of error is 

Answer 1

1.) This is a symmetric confidence interval, so the (upper limit - lower limit)/2 will give you the margin of error. 15.2 - 5.2 = 10; 10/2 = 5

2.) So, you have mean +- 5, so you can either add 5 to the lower limit or subtract 5 from the upper limite to get your mean