Question
Demand for the Basic Computer Operations class has increased steadily for several years as seen in the following table.Use the data below to develop a
Demand for the Basic Computer Operations class has increased steadily for several years as seen in the following table.Use the data below to develop a regression equation and determine the predicted number of students for year 7:
Year (X) Students (Y) XY X2 Y2
1 32321 1,024
2 36 72 4 1,296
3 37 111 9 1,369
4 40 160 16 1,600
5 42 210 25 1,764
6 47 282 36 2,209
__________________________________________________________________________________________________________________________
SX = 21 SY =234 SXY = 867 SX2 = 91 SY2 = 9,262
_______________________________________________________________________________________________
Average (X) = 3.5 Average (Y) = 39
a. What is "b"?
b. What is "a"?
c. Using the "a" and "b" you already calculated, what is the regression equation?Y-hat equals ______.
d.
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