How to Paired Sample t test.
The data below displays the time to process an inpatient admission, previously and after a system usage training session was given. The subsequent hypotheses were formulated for this study-
H0- the admission processing times afterward training are equal to or greater before training.
Ha- the admission processing times afterward training are less than before training.
|
Person
|
Before
|
After
|
|
1
|
21.00
|
18.66
|
|
2
|
22.81
|
16.27
|
|
3
|
20.53
|
18.17
|
|
4
|
21.58
|
21.27
|
|
5
|
18.77
|
21.12
|
|
6
|
27.71
|
18.31
|
|
7
|
19.00
|
22.24
|
|
8
|
22.38
|
25.83
|
|
9
|
24.16
|
22.28
|
|
10
|
20.29
|
15.57
|
|
11
|
25.33
|
24.60
|
|
12
|
20.99
|
24.51
|
|
13
|
29.74
|
29.76
|
|
14
|
16.63
|
8.68
|
|
15
|
24.45
|
24.31
|
|
16
|
23.04
|
19.64
|
1) What was the mean processing time before training?
2) What is the mean processing time after training?
3) What is the test statistic, t?
4) Accept or reject null hypothesis?
5) Was training successful?