Mr. Allen Profit is studying companies going public for first time. He is studying companies going for first time. He is particularly interested in relationship between the Sales, (X), and /units sold,(Y). A sample of 10 companies that recently revealed following information:
|
Sales(X)
|
14
|
35
|
22
|
29
|
6
|
15
|
17
|
20
|
12
|
29
|
|
Units sold(Y)
|
28
|
66
|
38
|
70
|
22
|
27
|
28
|
47
|
14
|
68
|
|
XY
|
|
|
Y^
|
|
|
e
|
|
a) Interpret the meaning of b1.
b) Name four parts of regression equation.
c) What is another name of r2 since r2 is symbol?
d) Complete table and sum each column