The owner of a New York City moving company, Harry Hasselflibber, has typically

Question

The owner of a New York City moving company, Harry Hasselflibber, has typically used an estimator to determine the number of labor hours needed for the move. This has proved useful in making bids in the past, but he would like to be able to develop a more reliable estimate that would be more accurate in predicting the labor hours. In a preliminary effort to provide a more accurate means of estimation, he has collected data for a number of moves in which the origin and destination were within the borough of Manhattan in New York City so that the travel time was an insignificant portion of the labor hours worked. The results are shown below. How many estimates did Harry include in this analysis? A. 36 B. 35 C. 33 D. 3 E. 2 What is the value of the pooled variance estimate? A. 6926.6 B. 3463.3 C. 844.8 D. 25.6 E. 5.06

Explanation / Answer

(47)

Explanation: The number of estimates Harry did include in the given model is 2. The Rooms and the cubic feet moved are the two estimates that are included in the model to carry Anova.

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(48)

The value of the pooled variance estimate is the mean square error in the anova model constructed. Hence, the value of the pooled varriance is MSE=25.6.

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