The Student Recreation Center wanted to determine what sort of physical activity was preferred by students. In a survey of 68 st
udents, 49 indicated that they preferred outdoor exercise over exercising in a gym. They estimated the proportion of students at the university who prefer outdoor exercise as ( 0.6139 , 0.8272 ), with 95% confidence. Which of the following is an appropriate interpretation of this confidence interval? 1) We are 95% confident that the proportion of exercise time which the average student spends outdoors is between 0.6139 and 0.8272.
2) We are certain that 95% of students will be between 0.6139 and 0.8272.
3) We are 95% confident that the proportion of all students at the university who prefer outdoor exercise is between 0.6139 and 0.8272.
4) We are 95% confident that the proportion of students surveyed who prefer outdoor exercise is between 0.6139 and 0.8272.
5) We cannot determine the proper interpretation of this interval.
You will first change the percentage into a decimal. This will turn out to be 0.0975. Next, you take that decimal and do 691.99 times 0.0975. You will then get 67.46902... You then add that number with 691.99. That is the answer. You should get 759.46. (This is rounded to the nearest cent.
