According the course handbook at a large university, the length of classes held on Monday (M), Wednesday (W), and Friday (F) hav
e a mean of 50 minutes and standard deviation of 5 minutes. The length of classes held on Tuesdays (T) and Thursdays (R) have a mean of 75 minutes and standard deviation of 7 minutes. The college provost is concerned that professors that teach classes on Tuesdays and Thursdays are dismissing their students too early. To determine if there is credibility about this concern the provost selects a random sample of 30 TR classes and 30 MWF classes and determines the length of each class. Let
1 answer:
You might be interested in
One of the product rules for exponents was used.
Or, you can consider that the definition of an exponent and the associative and commutative properties of multiplication were used.
Or, you can consider that the definition of an exponent and the associative and commutative properties of multiplication were used.