If a manager wishes to develop a confidence interval estimate for estimating the difference between two population means, an increase in the size of the samples used will result in:

With regard to unenforceable contracts, an extortion call in which a man agrees to pay money in return for his family's safety would be considered as a(n) ________

A) preexisting duty B) illusory promise C) illegal consideration D) past consideration

After World War II, U.S. managers made the mistake of thinking that ________

A) production problems were solved B) marketing problems were solved C) finance problems were solved D) marketing problems were not solved