Reference no: EM132850881
Question - The statistician of Sir K has developed the following cost-prediction equation, using observations from 12,000 to 30,000 machine hours:
Y = P 236,837 + 3.7625X
R-squared = 0.81
Standard error = P 24,363
Several 'outliers' are noted within tolerable limits
Y (dependent variable) = total maintenance cost
X (independent variable) = machine hours
A. What percentage of the variation in maintenance costs is explained by the independent variable?
a. 95% c. 81% b. 90% d. 66%
B. Compute the estimated maintenance cost at 20,000 machine hours.
a. P 236,837 c. P 312,087 b. P 252,790 d. P 336,450