STAT 100 Midterm: STAT100 ALL-SECTIONS SPRING1997 0000 MID EXAM 4

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

Document Summary

You may use calculators, and one page of notes (writing allowed both sides). Di erent parts of a problem have equal weight unless otherwise indicated. Do not spend too much time on any one problem. Put a box around the nal answer to a question: it is claimed that more than 60% of students majoring in biology are female. In a random sample of 400 biology majors, 250 students were found to be female. Brie y explain: a government administrator wants to know if there is any di erence in the quality of training given to new air tra c controllers at 2 di erent training centers. The exam results for the trainees of the 2 locations are as follows: Chicago number of trainees exam mean exam standard deviation. Test the claim that the quality of training is di erent at the two centers at a 5% signi cance level. **************there are more problems on the back side***************