How can the values in the Difference row of the table be interpreted?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A manager wants to determine 

manager wants to determine if an employee training program has increased her employees'
customer satisfaction ratings. She randomly selects ten of the participating employees and
compares their customer satisfaction ratings before and after the training. The results are
shown in the table.
1
2
Employee Before After Difference
3
4
5
6
N
S
19
10
5
G
295
P
***
3
N
3
2.8 2.9
S
7
k
TI
-0.10
-0.10
-0.10
0.1
How can the values in the Difference row of the table be interpreted?
Transcribed Image Text:manager wants to determine if an employee training program has increased her employees' customer satisfaction ratings. She randomly selects ten of the participating employees and compares their customer satisfaction ratings before and after the training. The results are shown in the table. 1 2 Employee Before After Difference 3 4 5 6 N S 19 10 5 G 295 P *** 3 N 3 2.8 2.9 S 7 k TI -0.10 -0.10 -0.10 0.1 How can the values in the Difference row of the table be interpreted?
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