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Find the regression of charitable contributions on income

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Reference no: EM131686001

Question: The following table gives information on the incomes (in thousands of dollars) and charitable contributions (in hundreds of dollars) for the last year for a random sample of 10 households.

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a. With income as an independent variable and charitable contributions as a dependent variable, compute SSxx, SSyy, and SSxy.

b. Find the regression of charitable contributions on income.

c. Briefly explain the meaning of the values of a and b.

d. Calculate r and r2 and briefly explain what they mean.

e. Compute the standard deviation of errors.

f. Construct a 99% confidence interval for B.

g. Test at the 1% significance level whether B is positive.

h. Using the 1% significance level, can you conclude that the linear correlation coefficient is different from zero?

Reference no: EM131686001

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