Which of the following is a test of the statistical significance of a particular regression coefficient?

A characteristic of stock prices is that ________

A) they tend to go up on the upswing of the cycle B) they tend to go down on the downswing of the cycle C) they are a leading indicator D) all of the above E) none of the above

Refer to Scenario 14.4. Suppose that a pollution tax is imposed on each unit of a firm's output. The number of workers hired

A) will decrease. B) will increase. C) will not change. D) will change in an indeterminate fashion.