Using a Sample of 63 Observations,a Dependent Variable Y Is

question 61

Multiple Choice

Using a sample of 63 observations,a dependent variable Y is regressed against two variables X1 and X2 to obtain the fitted regression equation Y = 76.40 − 6.388X1 + 0.870X2.The standard error of b1 is 3.453 and the standard error of b2 is 0.611.At α = .05,we could

• A)conclude that both coefficients differ significantly from zero.
• B)reject H0: β1 ≥ 0 and conclude H0: β1 < 0.
• C)reject H0: β2 ≤ 0 and conclude H0: β1 > 0.
• D)conclude that Evans' Rule has been violated.

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Definitions:

Reverse Auction

An auction in which the roles of buyer and seller are reversed, with the seller competing to obtain business from the buyer and prices typically decreasing as the auction progresses.

Disintermediation

Elimination of intermediaries in electronic commerce.

Substitute Products

Products that can serve as replacements for each other; when the price of one product rises, the demand for its substitute may increase.

Reverse Auctions

An auction model in which the roles of buyer and seller are reversed, with sellers competing to obtain business from the buyer by offering the lowest price.