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# ACC 300 Assignment 7

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Author: Dannie Young
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http://homework.plus/acc-300-assignment-7/

1. Problem 7-1
An analyst has timed a metal-cutting operation for 50 cycles. The average time per cycle was 10.7 minutes, and the standard deviation was 1.20 minutes for a worker with a  performance  rating  of  138  percent. Assume an allowance of 19 percent of job time. Find the standard time for this operation. (Do not round intermediate calculations.  Round your final answer to 2 decimal   places.)
2. Problem 7-4
Given these observed times (in minutes) for four elements of a job, determine the observed time (OT) for   each element. Note: The second element only occurs every other cycle. (Round your  answers  to  2 decimal places.)

CYCLE

Element

1

2

3         4

5

6

1

4.1

4.0

5.0      4.1

4.1

4.1

2

-

1.5

-      2.0

-

1.4

3

3.2

3.2

3.9      3.2

3.3

3.3

4          2.7       3.7       2.7       2.8       2.8       2.8
3. Problem 7-5

Given these observed times (in minutes) for five elements of a job, determine the observed time (OT) for   each element. Note: Some of the elements occur only periodically. (Round your answers to 2 decimal places.)

CYCLE

Element

1

2

3

4

5

6

1

2.1

2.0

2.6

2.1

2.1

(more)
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