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QUESTION 2 (WORK MEASUREMENT: WORK SAMPLING) 10.35 A total of 300 observations of Bob Ramos, an assembly-line worker, were made over a 40-hour workweek. The sample also showed that Bob was busy working (assembling the parts) during 250 observations. a) Find the percentage of time Bob was working. b) If you want a confidence level of 95%, and if ±3% is an accept- able error, what size should the sample be? c) Was the sample size adequate? PX

QUESTION 2 (WORK MEASUREMENT: WORK SAMPLING) 10.35 A total of 300 observations of Bob Ramos, an assembly-line worker, were made over a 40-hour workweek. The sample also showed that Bob was busy working (assembling the parts) during 250 observations. a) Find the percentage of time Bob was working. b) If you want a confidence level of 95%, and if ±3% is an accept- able error, what size should the sample be? c) Was the sample size adequate? PX

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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QUESTION 2 (WORK MEASUREMENT: WORK SAMPLING) .. 10.35 A total of 300 observations of Bob Ramos, an assembly-line worker, were made over a 40-hour workweek. The sample also showed that Bob was busy working (assembling the parts) during 250 observations. a) Find the percentage of time Bob was working. b) If you want a confidence level of 95%, and if ±3% is an accept- able error, what size should the sample be? c) Was the sample size adequate? P
Transcribed Image Text:QUESTION 2 (WORK MEASUREMENT: WORK SAMPLING) .. 10.35 A total of 300 observations of Bob Ramos, an assembly-line worker, were made over a 40-hour workweek. The sample also showed that Bob was busy working (assembling the parts) during 250 observations. a) Find the percentage of time Bob was working. b) If you want a confidence level of 95%, and if ±3% is an accept- able error, what size should the sample be? c) Was the sample size adequate? P
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