A) State your conclusions in terms of the problem.
B) Construct the 95% confidence interval for β.
C) Determine the p value for each test.
D) Arrange the residuals in the order of their corresponding X values and sketch the relationship.
The following table shows the hardness (in Brinell hardness numbers) and the tensile strength (in thousands of pounds per square inch) of ten specimens of a certain alloy.
|
Hardness (X)
|
20
|
30
|
40
|
50
|
60
|
70
|
80
|
90
|
100
|
25
|
|
Tensile strength (Y)
|
10
|
16
|
22
|
30
|
35
|
40
|
45
|
50
|
60
|
15
|