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 =

(c) Predict the value of x when y = 90. (Round your answer to one decimal place.) x =

(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?

Expert Solution

orchestra answered 2 years ago

A set of n = 8 ordered pairs has the following sums. x = 111 x2...

A set of n = 8 ordered pairs has the following sums. x = 111 x2 = 1,869 y = 618 y2 = 49,374 xy = 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 = 5. (Round your answer to one decimal place.) y = (c) Predict the value of x when y = 60. (Round your answer to one decimal...

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

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