typed letters add a shown in the following table, she wishes to develop a time s
ID: 344505 • Letter: T
Question
typed letters add a shown in the following table, she wishes to develop a time standard for the whole job. College promotes a wide variety of executive training courses for firms in the Arlington, Virginia, region. Director Wendy Tate believes that individually personal touch to marketing. To prepare letters for mailing, she conducts a time study of her secretaries. On the basis of the observations Performance Rating 85% 105% 95% 125 % Observation (minutes per cycle) 2 Element Typing letter Typing envelope Stuffing envelope Sealing, sorting 2.534 0.8 0.3 0.9 2.9A 5 2.7 3.1 0.6 4.4 6 3.3 0.8 0.4 1.0 2.7 2.0 0.9 0.5 0.6 0.8 1.8 0.3 1.01.1 Enter your answer in the answer box.Explanation / Answer
To be calculated:
Standard time for the process (in minutes)
Given values:
- Performance ratings of four elements
- Observations in minutes per cycle
- Allowance factor = 12% = 0.12
Solution:
Standard time is calculated as;
Standard time = Normal time / (1 - Allowance factor)
and,
Normal time = Average observed time x Performance rating
Element-1: Typing letter
Performance rating = 85% = 0.85
Average observed time = (2.5 + 3.4 + 2.7 + 2.0 + 2.7 + 3.3) / 6 = 16.6 / 6 = 2.77
Normal time = 2.77 x 0.85 = 2.35
Element-2: Typing envelope
Performance rating = 105% = 1.05
Average observed time = (0.8 + 0.9 + 0.6 + 0.8 + 3.1 + 0.8) / 6 = 7 / 6 = 1.17
Normal time = 1.17 x 1.05 = 1.23
Element-3: Stuffing envelope
Performance rating = 95% = 0.95
Average observed time = (0.3 + 0.5 + 1.8 + 0.3 + 0.6 + 0.4) / 6 = 3.9 / 6 = 0.65
Normal time = 0.65 x 0.95 = 0.62
Element-4: Sealing, Sorting
Performance rating = 125% = 1.25
Average observed time = (0.9 + 2.9 + 1.0 + 1.1 + 4.4 + 1.0) / 6 = 11.3 / 6 = 1.88
Normal time = 1.88 x 1.25 = 2.35
Total Normal time = Sum of Normal time of all elements
Total Normal time = 2.35 + 1.23 + 0.62 + 2.35
Total Normal time = 6.55
Now, Standard time can be calculated as;
Standard time = Normal time / (1 - Allowance factor)
Standard time = 6.55 / (1 - 0.12) = 6.55 / 0.88 = 7.44
The Standard time for the process = 7.44 minutes.
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