Answer and Explanation:
The computation is given below:
a) Observation time is
= Average time
= 1.2 minutes
b) Normal time is
= Observation time × performance rating
= 1.2 minutes × 0.95
= 1.14 minutes
c. The standard time is
= Normal time × allowance factor
= 1.14 × 1.11
= 1.265 minutes.
The allowance factor is
= 1 ÷ (1 - Allowances)
= 1 ÷ (1 - 0.1)
= 1.11