Answer:
24.5 seconds
Step-by-step explanation:
Given that:
Total number of observations = 50
Total time recorded for these 50 observations = 957 seconds.
The average observed time =
=
= 19.14
Next we determine the Normal Time:
Normal Time = average observed time× performance rating for the observations
Recall that the performance rating is 105% =1.05
Normal Time = 19.14 × 1.05 = 20.097
The standard time of a job is obtained by adding various allowances to the basic or normal time of the job.
Computing the standard time:
Standard time =
=
=
= 24.5
The standard time for the process is 24.5 seconds