# Question

Refer to Exercise 11.27.

a. Compute the value of the F statistic and the associated p- value.

b. How do the p- values for this F statistic and the t test of Exercise 11.28 compare? Why should this relation hold?

In exercise

a. Compute the value of the F statistic and the associated p- value.

b. How do the p- values for this F statistic and the t test of Exercise 11.28 compare? Why should this relation hold?

In exercise

## Answer to relevant Questions

Use the data given here to answer the following questions. a. Plot the data values in a scatter diagram. b. Sketch a straight line through the points. c. Use your sketched line to predict the value of y when x = 40. Refer to Exercise 11.27. a. Predict the mean total direct cost for all bumper sticker orders with a print run of 2,000 stickers (that is, with RunSize = 2.0). b. Compute a 95% confidence interval for this mean. In exercise In the preliminary studies of a new drug, a pharmaceutical firm needs to obtain information on the relationship between the dose level and potency of the drug. In order to obtain this information, a total of 18 test tubes ...Refer to the data in Exercise 11.47. a. Refit the regression model with the data value (14, 97.9) removed. How large were the changes in the slope and residual standard deviation? b. Compute the correlation coefficient with ...Refer to Exercise 11.54. Delete the data value x = 65.0, y = 110.0 from the data set. a. Refit the regression line, and compare the slope of the line with and without the data value x = 65.0, y = 110.0 in the set. b. Compute ...Post your question

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