STAT 100 Midterm: STAT100 ALL-SECTIONS SPRING1997 0000 MID EXAM 3

• School: University of Maryland
• Department: Statistics and Probability
• Course: STAT 100
• Professor: All

Document Summary

You may use calculators, but not books or notes. Di erent parts of a problem have equal weight unless otherwise indicated. Do not spend too much time on any one problem. The department has no advance estimate of this proportion. The sum of all of the observed levels for the sample group is 52,800. The sample standard deviation of the observations is 15. Construct a 90% con dence interval for the actual average cholesterol level of women over the age of 30.