Claudine Soosay recorded the following times assembling a watch. Determine (a) the average time, (b) the normal time, and (c) the standard time taken by her, using a performance rating of 95% and a personal allowance of 8%.
Assembly Times Recorded
|
Observation No.
|
Time (Minutes)
|
Observation No.
|
Time (Minutes)
|
|
1
|
0.11
|
9
|
0.12
|
|
2
|
0.10
|
10
|
0.09
|
|
3
|
0.11
|
11
|
0.12
|
|
4
|
0.10
|
12
|
0.11
|
|
5
|
0.14
|
13
|
0.10
|
|
6
|
0.10
|
14
|
0.12
|
|
7
|
0.10
|
15
|
0.14
|
|
8
|
0.09
|
16
|
0.09
|