An FDA representative randomly selects1212 packages of ground chuck from a grocery store and measures the fat content (as a percent) of each package. Assume that the fat contents have an approximately normal distribution. The resulting measurements are given below.

1919	1111	1313	1313
1616	1818	1212	1616
1414	1919	1515	1414

Copy Data

Step2of2:

Construct a 90%90% confidence interval for the true mean fat content of all the packages of ground beef. Round the endpoints to two decimal places, if necessary.