If a company moves from producing 100 units of good A and 50 units of good B to producing 70 units of good A and 60 units of good B, the opportunity cost is:

The regulatory agency with oversight responsibility for the pharmaceutical industry is the

a. IRS. b. FDA. c. SEC. d. ITC. e. ATT.

A firm is experiencing theft problems at its warehouse. A consultant to the firm believes that the dollar loss from theft each week (T) depends on the number of security guards (G) and on the unemployment rate in the county where the warehouse is located (U measured as a percent). In order to test this hypothesis, the consultant estimated the regression equation T = a + bG + cU and obtained the following results: Based on the above information, which of the following is correct at the 1% level of significance?

A. The estimates of the parameters a, b, and c are all statistically significant because the absolute values of their t-ratios exceed 2.797. B. The critical value of t is 2.797. C. The regression equation as a whole is statistically significant because the p-value of F is smaller than 0.01. D. The estimates of the parameters a, b, and c are all statistically significant because the p- values for, a? , b? and c? are all less than 0.01. E. all of the above