# Question

Use the data from Problem 14.20 to answer the following questions:

a. Calculate the SST.

b. Partition the SST into the SSR and SSE.

c. Calculate the sample coefficient of determination.

d. Test the significance of the population coefficient of determination using α = 0.05.

In Problem

a. Calculate the SST.

b. Partition the SST into the SSR and SSE.

c. Calculate the sample coefficient of determination.

d. Test the significance of the population coefficient of determination using α = 0.05.

In Problem

## Answer to relevant Questions

Consider the following set of ordered pairs: Assuming that the regression equation is y = 3.045 + 0.409x and the SSE = 9.727, construct a 95% confidence interval for x = 5. Use the data in Problem 14.26 to construct a 95% prediction interval to estimate the LDL cholesterol level of a 30 year old man. Verify your results with PHStat. In Problem Consider the following set of ordered pairs: Assuming that the regression equation is y = 3.693 + 0.285x and that the SSE = 7.650, test to determine if the slope is not equal to zero using α = 0.10. Using the data in Problem 14.40, construct a 95% confidence interval for the regression slope. In Problem Fair Isaac, the company that developed the credit score model used by most lenders today, would like to examine the linear relationship between the age and credit score of an individual. The following table shows the credit ...Post your question

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