Ou are a graduate assistant for a statistics class where there have been two exams so far. 89 students took the first exam, and the class had an average score of 69.1 with a standard deviation of 12.3 across the students’ scores. 74 students took the second exam, and the class had an average score of 64.35 with a standard deviation of 9.47 across the students’ scores. the professor wants to know if the average scores on the two exams are significantly different, and he asks you to perform a hypothesis test at the 0.05 significance level.

The purpose of the transportation approach for location analysis is to minimize which of the following? a. total costsb. total fixed costsc. the number of shipmentsd. total shipping costse. total variable costs

Craig complained to his friend jess that a class was too hard and he believed that the teacher was not being fair with his grading standards. jess replied, "craig, you really have an attitude problem." what is the relationship between the manner that the term attitude is used in common conversation and the how it is defined in consumer behavior? there is no relationship. common usage is not the same as attitudes as seen by the researchers who study consumer behavior. the term attitude is widely used in popular culture in much the same way it is used in studying consumer behavior. they are different in that popular culture does not recognize that attitudes are temporary. otherwise the usage is the same. they are similar except that popular culture assumes that attitudes are related to beliefs, and research scientists have shown that there is no such relationship.

Suppose you invest $2250 in a cd that earns 3% apr and is compound quarterly. the cd matures in 2 years. how much will this cd be worth at maturity