A set of n = 8 ordered pairs has the following sums. Σ x = 111...

A set of n = 8 ordered pairs has the following sums. Σ x = 111 Σx^2 = 1,869 Σy = 618 Σy2 = 49,374 Σxy = 7,860

(a) Find the line of best fit. (Round your answers to one decimal place.) ŷ = x +

(b) Predict the value of y when x = 8. (Round your answer to one decimal place.) y =

(d) Find the coefficient of linear correlation. (Round your answer to three decimal places.)

(e) Are the predictions in parts (b) and (c) reliable? Why or why not?

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orchestra answered 1 year ago

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