Q1) A year ago, Air Force implemented new test for finding which candidates are most probable to become successful pilots. Now they wish to see if implementing pilot predictor test was a good idea. Scores have been standardized to facilitate comparison.
|
Pilot
|
Predictor Score (Y)
|
Performance Score (X)
|
|
1
|
5
|
6
|
|
2
|
7
|
6
|
|
3
|
8
|
5
|
|
4
|
9
|
7
|
|
5
|
9
|
8
|
|
6
|
4
|
8
|
|
7
|
8
|
7
|
|
8
|
5
|
5
|
|
9
|
9
|
9
|
|
10
|
10
|
9
|
|
11
|
5
|
6
|
|
12
|
7
|
6
|
|
13
|
8
|
5
|
|
14
|
9
|
7
|
|
15
|
9
|
8
|
|
16
|
4
|
8
|
|
17
|
8
|
7
|
|
18
|
5
|
5
|
|
19
|
9
|
9
|
|
20
|
10
|
9
|
|
21
|
5
|
6
|
|
22
|
7
|
6
|
|
23
|
8
|
5
|
|
24
|
9
|
7
|
|
25
|
9
|
8
|
|
26
|
4
|
8
|
|
27
|
8
|
7
|
|
28
|
5
|
5
|
|
29
|
9
|
9
|
|
30
|
10
|
9
|
a) Determine the null hypothesis?
b) Compute the value of test statistic?
c) Are results statistically significant? Explain why or why not?
d) What conclusions can you draw from your findings?