Reference no: EM133202716
Problem:
A colleague conducted a statistical analysis and needs your assistance in interpreting the results.
The estimated regression equation is given by:
??= 75 + 7.46(??1) -1.77(??2) + 2.83(??3)
The dependent variable is the transaction price of used yachts measured in thousands of dollars.
x1 is the number of rooms on board the yacht.
x2 is the age of the yacht measured in years.
x3 is the length of the yacht measured in feet.
R2 = 0.68
Adjusted R2 = 0.60
n = 75
(a) Explain briefly why the "R2" and the "Adjusted R2" statistics differ in this output.
(b) Identify and interpret the estimate for the slope coefficient associated with the independent variable "age of the yacht." Be specific.
(c) Identify and interpret the estimate for the intercept (or constant term). Include both the literal interpretation and a practical assessment.
(d) Construct a point estimate for the predicted transaction price of a used yacht that has 4 rooms,
is 8 years old, and is 35 feet long.
Please use minitab or excel to show work.