Earliest due date, Basic Statistics

Q1.(i)   A manufacturing firm has previously sequenced its jobs using the "Shortest Operation Time" (SOT) rule.  This has resulted in poor delivery performance with many jobs being delivered late.  They have now changed to the "Earliest Due Date" (EDD) rule in an attempt to improve their service to customers.  Two samples of data, one using SOT and one using EDD are shown below:

(a)    Use a SIMPLE test to check if the data can be regarded as "reasonably" Normal.

(b)   Has the delivery performance improved since the new (EDD) rule was introduced?  Explain your answer.

Note: "Negative Lateness" means the job was Early.

2280_Earliest Due Date.png

(ii)     Fluorescent light tubes used by a firm have a target life of 1600 hours.  However, accumulated data shows a mean time to failure of 1570 hours.  What proportion of the tubes could be expected to achieve the target life? (Explain your choice of model.).

Posted Date: 2/26/2013 12:34:55 AM | Location : United States







Related Discussions:- Earliest due date, Assignment Help, Ask Question on Earliest due date, Get Answer, Expert's Help, Earliest due date Discussions

Write discussion on Earliest due date
Your posts are moderated
Related Questions
Question 2 Pankratov Lakes is a new recreational real estate development that consist of 500 Lake front and lake view lots. As a special incentive to the first 100 buyers of lake v


Suppose an individual has a lifetime earnings profile and expects to live for 4 Periods:             Earnings in Period 1:   $30             Earnings in Period 2:   $60

A. If CD players are able to use the LDD strategy better than pure chance then explain what happens to the signal reliability ration as a CD player detects more cautiously B. As

Depreciation during the financial year  The Resources which are bought during the economical season and its determined that the Depreciation will be incurred on them @ 10% PA it

1. MMC's CEO, Dr. Warren A. Beatty (Not the actor) believes that the demand trend for MMC is essentially linear. Thus, he wishes to determine if linear regression would be an effec

You are working for the management of ESK Jewellery as a marketing consultant. The main business of ESK Jewellery is the retailing of diamond jewellery. They opened their first sho

what is the average value of 1,2,3,4,5

method of measuring trend

Bond redemption The regaining of control of bonds formerly issued by expense of amount due to the owner.