Exhibit 15-2

question 69

Multiple Choice

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.When testing whether the explanatory variables jointly influence the response variable,the null hypothesis is

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Definitions:

Posterior Probabilities

The revised probabilities of scenarios or hypotheses being true, adjusted after taking into account new evidence or information.

Conditional Probabilities

The probability of an event occurring given that another event has already occurred.

Proper Sample Space

The set of all possible outcomes of a statistical experiment.

Intersection

In mathematics, the set containing all elements that are common to two or more sets.