Fcfs-spt and edd rules

Assignment Help Basic Statistics
Reference no: EM13121367

The hickory company manufactures wooden desks. Management schedules overtime every weekend to reduce the backlog on the most popular models. The automatic routing machine is used to cut certain types of edges on the desktops the following orders need to be scheduled for the routing machine:

Order Estimated Machine time(hr) Due Date (hr from now)

1 10 12

2 3 8

3 15 18

4 9 20

5 7 21

The due dates reflect the need for the order to be at its next operation.

a) Develop separate schedules by using the FCFS,SPT and EDD rules. Compare the schedules on the basis of average flow time,the average early time and average past due hours for any order.

b) For each schedule,calculate the average WIP inventory(in orders) and the average total inventory( in orders)

c) Comment on the performance of the two rules relative to these measures

Reference no: EM13121367

Questions Cloud

Develope a formula for the overall probability of kill : Develope a formula for the overall probability of kill, assuming that N defensive missles are launched.
Amount of differential cost increase or decrease : If 15,000 units of the part are normally purchased during the year but could be manufactured using unused capacity, what would be the amount of differential cost increase or decrease from making the part rather than purchasing it?
What is the equilibrium concentration of n2 : An equilibrium mixture at 225 degrees C contains 0.10 M NH3 and 0.20 M H2 for the reaction 3H2 (g) + N2 (g) --- 2NH3(g) If the Kc at this temperature is 1.7 X 10 2.
Domain of quadratic functions : What is the domain of a quadratic function? Can you give an example please.
Fcfs-spt and edd rules : Develop separate schedules by using the FCFS,SPT and EDD rules. Compare the schedules on the basis of average flow time,the average early time and average past due hours for any order.
What is the probability that a random sample : What is the probability that a random sample of 50 such women will yield a mean entry-level that exceeds $58,000?
What is the percent by mass of silver nitrate in this soln : A 93 gram solution of silver nitrate contains 16 grams of AgNO3. What is the percent by mass of silver nitrate in this solution?
Margin of safety expressed in dollars : A company with a break-even point at $900,000 in sales revenue and had fixed costs of $225,000. When actual sales were $1,000,000 variable costs were $750,000. Determine (a) the margin of safety expressed in dollars, (b) the margin of safety expre..
Dangers/risks of scientific or technological progress : What are the dangers/risks of scientific or technological progress?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Find confidence interval for mean of variable of interest

If the 95% confidence interval for the mean of a variable of interest obtained from a sample for values contains a hypothesized value, µ1, of the mean.

  Forecast the rental and leasing revenue

Shown below are rental and leasing revenue ?gures for of?ce machinery and equipment in the United States over a seven-year period according to the U.S. Census Bureau. Use these data to run a linear regression and then forecast the rental and leasi..

  Finding out sample size for population mean

How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?

  Confidence interval for policy of replenishment of fluid

What is the probability that there will be a stock out? Given that you, the maintenance officer at the facility, want the probability of a stock out to be no more than 5% what should the reorder point be?

  What is the standard error for the sample mean

At a computer manufacturing company, the actual size of computer chips is normally distributed with a mean of 1 centimeter and the standard deviation of 0.1 centimeter. A random sample of 12 computer chips is taken. What is the possibility that th..

  Testable null statistical hypothesis

Clearly identify the independent and dependent variables you would study. Determine whether a one-tail or two-tail test is most appropriate and explain why. Generate a testable null statistical hypothesis and an alternative statistical hypothesis.

  Bound on the error of estimation

The sample mean of the accounts is found to be y-bar = $94.22, and the sample variance is equal to $455.21. Estimate mu and place a bound on the error of estimation.

  Estimating the required probability

Estimate the probability the store will gross over $850 a) At least 3 out of 5 business days.

  Mean of the sampling distribution

What is the mean of the sampling distribution? What is the standard deviation of the sampling distribution? What is the probability that the mean tuition and fees of the sample is greater than $20,000?

  P-value and level of significance

A random sample of 1440 current job applicants results in 61 failures (based loosely on data from the American Management Association).

  Problem related to least squares equation

Assume the least squares equation is Y' = 10 + 20X. What does the value of 10 in the equation indicate?

  Explaining a type one and type two error for situation

Explain a Type I error for this situation. Explain a Type II error for this situation.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd