CH17 - Statistics Assignment CH17 17.1 a. b....

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Unformatted text preview: Statistics Assignment CH17 17.1 a. b. � � � �� � ý *� c. � � � �� � ý *� 17.2 a. It seems that the advertising and sales are linearly related . b. According to Excel: 9.1 Advertising 0.06 The sample least squares line: The coefficient tells us that for each additional thousand dollars paid for advertiseme increased, sales increase by 0.058231 million dollars on average. Y-intercept is me 17.3 a. � � 475.17 Rate-39.17 The regression line: b. For each additional one percent mortgage rates increased, 39.1667housing starts d on average. Y-intercept is meaningless. 17.6 a. b. � � 3.64 Length 0.27 The regresion line: 11 9670103 Pg+ 0.516 33.73 10 20 30 40 50 60 70 80 90 100 110 5 10 15 20 Scatter Diagram Advertising Sales 10 20 30 40 50 60 70 5 10 15 20 25 30 Scatter Diagram Length Test c. For each additional second increased in commercial, the scores of the memory test by 0.267483 on average. Y-intercept is meaningless 17.8 a....
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CH17 - Statistics Assignment CH17 17.1 a. b....

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