In most companies, motivational and efficient job designs can be maximized simultaneously.

Closing is September 20. How many days of interest on a new loan must the purchaser prepay at closing?

A. 10 B. 11 C. 20 D. 21

The test of the null hypothesis is a ________ test if the alternative hypothesis is expressed directionally

A) two-tailed B) three-tailed C) four-tailed D) one-tailed E) A and D