Chapter 7 #42 The accounting department at Weston Materials‚ Inc.‚ a national manufacturer of unattached garages‚ reports that it takes two construction workers a mean of 32 hours and a standard deviation of 2 hours to erect the Red Barn model. Assume the assembly times follow the normal distribution. a. Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect? z(29) = (29-32)/2 = -3/2 z(34) = (34-32)/2 = 1 z(32) = 0 P(32 < x <
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Homework 3 Probability 1. As part of a Pick Your Prize promotion‚ a store invited customers to choose which of three prizes they’d like to win. They also kept track of respondents’ gender. The following contingency table shows the results: | MP3 Player | Camera | Bike | Total | Men | 62 | 117 | 60 | 239 | Woman | 101 | 130 | 30 | 261 | Total | 163 | 247 | 90 | 500 | What is the probability that: a. a randomly selected customer would pick the camera? 247/500= 0.494=
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Incorporating Resource Capabilities to Quality in Earned Value Management (EVM) Gresola‚ Sir Charles M. and So‚ Jemuell Rei B. BS Industrial Management Engineering minor in Information Technology De La Salle University I. Introduction Earned Value Management (EVM) is a proven technique or tool that is widely recognized and accepted to help in managing projects since it lets the manager combine schedule performance and cost performance to answer the question “What did we get from the money
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Chapter 7 Exercises Name __Sherry Smith____________ 1. Given the following information for a one-year project‚ answer the following questions. Recall that PV is the planned value‚ EV is the earned value‚ AC is the actual cost‚ and BAC is the budget at completion. PV ¼ $ 23‚000 EV ¼ $ 20‚000 AC ¼ $ 25‚000 BAC ¼ $ 120‚000 a. What is the cost variance‚ schedule variance‚ cost performance index (CPI)‚ and schedule performance index (SPI) for the project? Cost Variance = EV-AC = $20
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Earned Value Analysis (EVA) takes consideration of the following in a project (Context for the plant & actual expenditure‚ integrates the project scope‚ schedule and resource characteristics into a comprehensive set of measurements. The use of earned value analysis can be categorized in the following ways: Financial Databases for EVA Earned Value Definitions Establishing Earned Value Budgets Determining Earned Value Variance Analysis‚ and Forecasting There are three important sources that
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Earned Value Management Earned value management is the project management process or a technique. It is a value assigned to work which is accomplished during a particular time period. Earned Value Management (EVM) is a project planning and control approach which provides cost and schedule performance measurements. It compares actual accomplishment of scheduled work and associated cost against an integrated schedule and budget plan. And the value can be measured in any appropriate unit of dollars
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The earned income tax is used for individuals who make less than $54k a year. This credit is one of the most overlooked tax break‚ according to many experts. The IRS estimate 26 million people received about $65.6 billion under this tax credit last year. The average amount received was more than $2‚400 but it can be worth more than $6‚000. Most people who qualified for the tax break do not apply for it. It’s huge. Especially for low income households‚ most people who applied couldn’t believe
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to use the correct formula? mean; median; mode; range; quartiles; variance; standard deviation. Solution: A sample is a subset of a population. A population consists of every member of a particular group of interest. The variance and the standard deviation require that we know whether we have a sample or a population. 2. The following numbers represent the weights in pounds of six 7year old children in Mrs. Jones ’ 2nd grade class. {25‚ 60‚ 51‚ 47‚ 49‚ 45} Find the mean; median; mode; range; quartiles;
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5-1 Earned Value Calculation 1. PV-BCWS=$3607.14 EV-BCWP=$3593.34 (.98 x 3666.67) CPI x AC AC-ACWP=$3666.67 (3593.34/.98) EV/CPI 2. SV= -13.8 (3593.34 – 3607.14) EV – PV CV=73.33 (3593.34 – 3666.67) EV – AC SPI=1.0 (3593.34/3607.14) EV/PV CPI=.98 (3593.34/3666.67) EV/AC 3. According to these calculations‚ the schedule variance is running late and the cost variance did not run over. The SPI is 1.0 which means that it is running on schedule. The CPI is .98 which is over budget by
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1. Find a) P(Z > 2.58)‚ b) P(Z < -1)‚ c) P(-1.5 ( Z < 5) Ans : a) P( Z > 2.58) = 0.0049 ( 4 decimal places) b) P ( Z < -1) = 0.1587 ( 4 decimal places) c) P ( -1.5≦ Z < 5) = P ( -1.5 < Z < 5) = (0.5- 0.0668) + ( 0.5 -0) = 0.9332 ( 4 decimal places) 2. Find the value of z if the area under a Standard Normal curve a) to the right of z is 0.3632; b) to the left of z is 0.1131; c) between 0 and z‚ with
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