Question: Exercise 21 shows computer output examining the association between the length of a movie and its cost. In Exercise 21 a) Check the assumptions and

Exercise 21 shows computer output examining the association between the length of a movie and its cost.
In Exercise 21

a) Check the assumptions and conditions for inference.
b) Find a 95% confidence interval for the slope and interpret it in context.

Dependent variable is Budget($million) R-squared 27.3% s 32.95 with 120 2- 118 degrees of treedom Variable Coefficient SE(Coeff) t-Ratio P-Value Intercept63.998 2 3.74 0.0003 Run Time 1.02648 0.1540 6.66 s0.0001

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