Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
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Chapter 10, Problem 25P
Summary Introduction
To determine: The normal time for the operation
Introduction: Time study is the basis that helps set the standard time; it would time a sample of the performance of the worker.
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Problem 1
Magic, Inc. carried out a time study of an existing job to develop new time standards. A worker
was observed for 50 minutes. During that period, 42 units were produced. The analyst rated the
worker as performing at an 85 percent performance rate. Allowances in the firm for rest and
personal time are 10 percent.
a. What is the normal time for the task?
b. What is the standard time for the task?
Define:
1.Severity Rate (SR)
2.Average Workdays Lost
4 -
For a time study of a health insurance claims-adjusting process, the analyst recorded the times. The job is divided
into four work elements, as shown in table. What is the appropriate sample size for estimating the time for element 2
within 7 percent of the true mean with 95 percent confidence?
Work Element
1
3
4
5
Rating
1. Check from completion and
Element
0.50
0.55
0.45
0.65
0.50
1.1
signatures
Time
2. Enter claim amounts, check
Element
0.70
1.80
0.70
0.95
0.75
1.2
math
Time
3. Determine proportion of claim
to be disallowed
Element
1.45
1.30
1.25
1.65
1.40
1.2
Time
4. Generate form letter, enter data Element
2.75 2.50 2.25
1.75
2.70
0.9
for check
Time
a)
19
b)
16
c)
23
d)
21
e)
28
Chapter 10 Solutions
Operations Management
Ch. 10 - Prob. 1DQCh. 10 - Prob. 2DQCh. 10 - Prob. 3DQCh. 10 - Prob. 4DQCh. 10 - Prob. 5DQCh. 10 - Prob. 6DQCh. 10 - Prob. 7DQCh. 10 - Prob. 8DQCh. 10 - Prob. 9DQCh. 10 - Prob. 10DQ
Ch. 10 - Prob. 11DQCh. 10 - Prob. 12DQCh. 10 - Prob. 13DQCh. 10 - Prob. 14DQCh. 10 - Prob. 1PCh. 10 - Draw an activity chart for a machine operator with...Ch. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - Prob. 13PCh. 10 - Prob. 14PCh. 10 - Prob. 15PCh. 10 - Prob. 16PCh. 10 - Prob. 17PCh. 10 - Prob. 18PCh. 10 - Prob. 19PCh. 10 - Prob. 20PCh. 10 - Prob. 21PCh. 10 - Prob. 22PCh. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - Prob. 26PCh. 10 - Prob. 27PCh. 10 - Prob. 28PCh. 10 - Prob. 29PCh. 10 - Prob. 30PCh. 10 - Prob. 31PCh. 10 - Prob. 32PCh. 10 - Prob. 33PCh. 10 - Prob. 34PCh. 10 - Prob. 35PCh. 10 - Prob. 36PCh. 10 - Prob. 37PCh. 10 - Prob. 38PCh. 10 - Prob. 1CSCh. 10 - Prob. 2CSCh. 10 - Prob. 3CSCh. 10 - Prob. 4CSCh. 10 - Prob. 1VCCh. 10 - Prob. 2VCCh. 10 - Prob. 3VCCh. 10 - Prob. 4VC
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