Calculate the normal time for the job, Operation Management

A work  sampling  study  is to  be made of a typist  pool. It is  left that  typists are idle  30 % of the  time. How many observations  should  be made  in order  to  have 395.5%  confidence so that  so that  the accuracy  within +    4%.

Solution

Number  of observation required for  work  sampling study=

             N = c2 pq / E2

 Where c  =  constant  depending  on confidence level

 P =  percentage of iding q  percentage of activity  E = absolute error

 C= 2  for  95.5%  confidence level  p = 0.3 , q = 1- p = 0.7, E = 4 % = 0.04

  N =  4X 0.3X 0.7 / 0.04 2= 0.84 /0.0016= 525

Posted Date: 2/25/2013 6:23:08 AM | Location : United States







Related Discussions:- Calculate the normal time for the job, Assignment Help, Ask Question on Calculate the normal time for the job, Get Answer, Expert's Help, Calculate the normal time for the job Discussions

Write discussion on Calculate the normal time for the job
Your posts are moderated
Related Questions
Describe in detail a matrix structure for an organization. What types of competencies and technologies would be best suited for this kind of structure? Why?

Credibility - Customer Satisfaction and Service Quality Involves trustworthiness, believability and honesty. It involves having the customer's best interests at heart. Contrib


North West Corner Rule: Step1: The  first  assignment is made in  the cell  occupying  the upper  left  hand ( north  west ) corner  of  the transportation  table. The maxim

Learning Teaching and Assessment Strategy: Key lectures will be delivered and immediately followed up by group tutorials in which the opportunity to critically reflect, analys

Explain how the EOQ technique helps explain the following: All things being equal, the production inventory quantity will be larger than the economic order quantity.

This case study will be discussed and reviewed in the Case Study discussion question for the week. Post your responses to the questions at the end in the Case Study discussion ques

Describe the elements in a HRMIS and the role such a system plays in an organization's ability to meet its goals. If you are familiar with such a system, what information does it p

What type of transmission path does a fixed wireless signal require? a. line-of-sight b. non-line-of-sight c. omni-directional d. code divided