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3. What is the answer for <A>? a. about 37 b. about 48 c. about 52 d. about 59 4. The interval estimate of the mean value of y for a given value of x is: 5. If the coefficient of determination is 0.9, the percentage of variation in the dependent variable explained by the variation in the independent variable. Exhibit 2 Regression analysis was applied between sales data (Y in \$1,000s) and advertising data (x in \$100s) and the following information was obtained. = 12 + 1.8 x n = 17 SSR = 225 SSE = 75 S b1 = 0.2683 6. Refer to Exhibit 2. Based on the above estimated regression equation, if advertising is \$3,000, then the point estimate for sales (in dollars) is:

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Section 0401 7. Refer to Exhibit 2. The F statistic computed from the above data is a. 3 b. 45 c. 48 d. 50 8. Refer to Exhibit 2. The t statistic for testing the significance of the slope is 9. Refer to Exhibit 2. The critical t value for testing the significance of the slope at 95% confidence is 10. Refer to Exhibit 2. At 5% level of significance
Section 0401

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Section 0401
Section 0401
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• Spring '08
• Priya
• Statistics, advertising campaigns, exhibit, confidence interval estimate, Weekly Payroll

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