Exhibit 15-2.A sports analyst wants to exam the factors that may influence a tennis player's chances of winning.Over four tournaments,he collects data on 30 tennis players and estimates the following model: 
, where Win is the proportion of winning,Double Faults is the percentage of double faults made,and Aces is the number of Aces.A portion of the regression results are shown in the accompanying table. 
Refer to Exhibit 15-2.Is the relationship between Win and Aces significant at the 5 percent level?
Definitions:
Output Price
The price at which a product or service is sold in the market.
Monopolist
A single seller in a market with no close substitutes for the product, giving the seller market power.
Marginal Revenue Product
The increase in revenue a firm expects from employing one additional unit of a resource, such as labor.
Labor Demand Curve
A graph showing the relationship between the quantity of labor demanded by employers and the wage rate, typically illustrating that higher wages lead to lower demand for labor.
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