Consider the data given in the following table. a. Find the least squares regression line and the
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a. Find the least squares regression line and the linear correlation coefficient r.
b. Suppose that each value of y given in the table is increased by 5 and the x values remain unchanged. Would you expect r to increase, decrease, or remain the same? How do you expect the least squares regression line to change?
c. Increase each value of y given in the table by 5 and find the new least squares regression line and the correlation coefficient r. Do these results agree with your expectation in part b?
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n 6 x 210 y 122 x 2 9100 y 2 2696 xy 4880 xn 2106 35 yn 1226 203333 SS xx x 2 x 2 n 668343...View the full answer
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