ii) A contractor owns three excavators of different capacity. He/she wants to dispatch these excavatorsinto three different jobs. The performance of the excavators is measured as the time consumed toperform each job. The data of the time tests are shown as given in the table below.Job time (hour)Job 1 Job 2 Job 3Excavator1549.41083103(a) Draw a network flow diagram.(b) Formulate a mathematical model to obtain the minimum time.(c) Solve this model using the Vogel's approximation model.

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Answered: A contractor owns three excavators of…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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5. Consider the following traffic flow problem:There is a roundabout in your area where traffic is entering and exiting from North,South, East and West. Traffic flows clockwise around the roundabout. The traffic flowin and out of each direction in vehicles per hour are the following:North: 50 entering and 60 exitingSouth: 75 entering and 80 exitingEast: 55 entering and 40 exitingWest: 45 entering and 30 exiting.To avoid congestion “flow in must equal flow out”.(a) Draw a diagram to represent the above traffic flow problem.(b) Model the above problem as a system of equations.(c) Write down the augmented matrix for the above system of equations
Does moderate alcohol consumption impact the performance of heavy machinery opera- tors in the workplace? A large stevedoring company studied the time on task (in seconds) to complete a complex manoeuvre by crane operators on the dock, firstly in a completely sober condition, and then five days later, after consuming a moderate amount of alcohol (as measured by a blood alcohol test). The data are given below: Operator Time taken while sober Time taken after consuming alcohol 2 3 4 5 6 9 10 186 375 310 240 220 420 410 205 250 900 262 565 800 630 285 365 405 735 425 900 (a) Does moderate alcohol consumption increase the time it takes to complete a complex crane manoevure on the docks? Use an appropriate non-parametric test at a = 0.05 to support your conclusion. (b) Give a normal approximation to the above test (ignore that n is less than 25). Comment on the outcomes of the two different tests at the 1% level of significance.
Show the calculation of the row percentage and the row percentage found in the “0.4 to 0.5” and playing position “out Field ” cell and EXPLAIN the meaning of this percentage. Row Percentage for Out field at bin 0.4 to 0.5 is: 20(32.95%) Percentage Row found at bin 0.4 to 0.5 is: 60(100%)
A quality control engineer studied the relationship between years of experience as a system control engineer and the capacity of the engineer to complete within a given time a complex control design including the debugging of all computer programs and control devices. A group of 25 engineers having widely differing amounts of experience (measured in months of experience) was given the same control design project. The results of the study are given in the following table with y 5 1 if the project was successfully completed in the allocated time and y 5 0 if the project was not successfully completed. a. Determine whether experience is associated with the probability of completing the task. b. Compute the probability of successfully completing the task for an engineer having
I have collected real data on the sale of a microwavable cup of soup across 20 different cities for the same time period (a month). The variables in the dataset are: Quantity sold in the city for that month: Measured in thousands of units Price: measured in dollars Average Income in the city: Measured in thousands of dollars Ads: Average number of ads run in stores for that city during that month. Price of a substitute product: measured in dollars Population of the city: measured in thousands of people The dataset is on Canvas and, using Excel or any other statistical software, please answer the following questions: 1. Describe the patterns in quantity sold and own and rival prices during this time period using basic descriptive statistics. Graphs are welcome as well. 2. Take the logs of the variables, and estimate the demand function. a. Interpret the R-square. b. Interpret the coefficients for logP and logPsub c. Interpret the p-values associated with each independent…
A company is producing 3 products A ,B and C. BOM of each product is given in the table below. Material Unit Product A Product B Product C Steel Ton 4 Aluminum KG 50 40 60 Wood CFT 10 10 Glass SFT 30 30 Rubber Sealer RFT 100 120 Screws Рack 5 6 4 Nut Bolt Dozen 2 Calculate the material requirements for 6 months production for all the products if monthly demand for A=1000, B=1200 and C=1500 units
Let us consider the case of LaRosa Machine Shop (LMS). LMS is studying where to locate its tool bin facility on the shop floor. The locations of the five production stations appear in the figure below. Y 5 3 Min 2 Fabrication 1 Station Paint Paint Subassembly 1 Fabrication (x, y) = Subassembly 1 Subassembly 2 Assembly Subassembly 2 2 1 4 1 3 X Y Demand 3 2.5 2 4 2 Assembly 5 4 4 11 25 12 6 16 X = horizontal location of the tool bin Y = vertical location of the tool bin 5 In an attempt to be fair to the workers in each of the production stations, management has decided to try to find the position of the tool bin that would minimize the sum of the distances from the tool bin to the five production stations. We define the following decision variables. 6 e We may measure the straight line distance from a station to the tool bin located at (X, Y) by using Euclidean (straight-line) distance. For example, the distance from fabrication located at the coordinates (1, 4) to the tool bin located…
Create a decision three that would help the best decision for the company.
I need a pie chart of this
6) The following data is available for a simple hedonic home price model. Lot size and house size are continuous variables. For example, for every 100 square feet in house size, the value of the home increases by $150x100=15,000. Regarding proximity to a hospital, any home within 3 miles of a hospital is worth an additional $10,000 premium. Beyond 3 miles, there is no premium. What is the value of a 2,000 square foot home on a 5,000 square foot lot 2 miles from the hospital? Coefficient Value Description Lot size in Sq Ft House in Sq Ft Within 3 Miles of Hospital 60 150 10,000
Find the production schedule for the technology matrix and demand vector given below:
Find the production schedule for the technology matrix and demand vector given below: 0.1 0.3 0.4 4 A = 0.1 0.2 0.4 D = 5 %3D 0.1 0.1 3 X =

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