Exhibit 14-2.A statistics student is asked to estimate .She calculates the following values. Refer to Exhibit 14-2.What is y if x equals 2?
A)6.62
B)11.78
C)58.22
D)63.38

Question

Exhibit 14-2.A statistics student is asked to estimate  .She calculates the following values.  Refer to Exhibit 14-2.What is y if x equals 2?
A)6.62 
B)11.78 
C)58.22 
D)63.38

Quizplus · Accepted Answer

Using the estimated regression equation, y = 7.01 + 22.58x - 1.14x^2, we can plug in x=2 and solve for y:
y = 7.01 + 22.58(2) - 1.14(2)^2 
y = 7.01 + 45.16 - 4.56 
y = 58.22 
Therefore, the estimated value of y when x = 2 is 58.22. Therefore, the answer is C.