The value of the sample correlation coefficent r for these data it approximately -0.508. Answer the following. Carry your intermediate ocomputations to at least four decimal places, and reund your answers as specified below. (If necessary, consult a lst of fermulas-) (a) What is the value of the slope of the least-squares regression line for these data? Round your answer to at least two decimal places (b) What is the value of the y-interoept of the least-squares regression line for these data Round your answer to at least two decimal places

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