ECE 302 Problem Set 9 Fall 2013 The following problems have been selected from the course text. 4.78 In a large collection of wires‚ the length of a wire is X‚ an exponential random variable with mean 5π cm. Each wire is cut to make rings of diameter 1 cm. Find the probability mass function for the number of complete rings produced by each length of wire. 4.85 The exam grades in a certain class have a Gaussian pdf with mean m and standard deviation σ. Find the constants a and b so that
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Chapter 17‚ Problem B1 A. To remain comfortably within the ‘A’ range‚ the firm should avoid the lower of each scale. Fixed Charge Coverage = 3.40 – 4.30 (Scale 3.00 – 4.30) Total Debt = 55 – 65 (45 - 65) Long-Term Debt = 25 – 32 (22 – 32) B. Other factors to consider include net present value (NPV)‚ foreign tax credits‚ and the price of stock. C. Bixton must resolve the research and development‚ and foreign tax credits. The target ranges listed are suitable only for a debt shield. Lenders
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Business system anaylsis Problems and Exercises Week 3 Homework Tom Sanders DeVry University Professor Girten September 19‚ 2014 Problems and Exercises Chapter 5 Question 1 - One of the potential problems mentioned in this chapter with gathering information requirements by observing potential system users is that people may change their behavior when observed. What could you do to overcome this potentially confounding factor in accurately determining information requirements? The analyst could
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GRADE 9/9 Lind Chapter 9; Exercise 12 The American Sugar Producers Association wants to estimate the mean yearly sugar consumption. A sample of 16 people reveals the mean yearly consumption to be 60 pounds with a standard deviation of 20 pounds. a. What is the value of the population mean? What is the best estimate of this value? The value of population mean is unknown. The best estimate of this value is the sample mean of 60 pounds. b. Explain why we need to use the t distribution. What assumption
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0 26.6 27.5 Net Income 13.5 10.5 7.7 Did Vallejo’s net income as a percent of sales increase‚ decrease‚ or remain unchanged over the 3 year period. Provide numerical support for your answer. Sales – Cost of Goods Sold – Expenses = Net Income 100 – 64.8 – 27.5 = 7.7 for 2010 100 – 62.9 – 26.6 = 10.5 for 2011 100 – 60.5 – 26.0 = 13.5 for 2012 During the 3 year period of 2010-2012‚ the net income increased as a percent of sales for the Vallejo Company due to the decrease as a percent of sales
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will also learn how to determine the duration of the project‚ and the critical path. In this homework assignment‚ you will be working through four Activity In Box (AIB) problems. Using the activity‚ duration‚ and predecessor information given in this document‚ you should first construct a network for each "project." [Each problem will have its own network.] Once you have constructed the network‚ please answer the corresponding questions. Once you answer the questions‚ please post your responses
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Sampling and Data Collection Plan Amy Nguyen QNT/561 November 3‚ 2014 Dr. Anthony Matias Sampling and Data Collection Plan Population and Size The population would be the customers of Starbucks. The size of the population is 300. Target Population The target population would be the senior‚ middle‚ and young customers of the organization as it would help to find out that how much coffee effect their life. The customers would have more knowledge about the effects of drinking too much coffee daily
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L-3 HR Department Betters Their Workforce QNT/351 September 12‚ 2014 Instructor: David FrancomIntroduction L-3 communications is a great company to be involved in. As challenges arise‚ the HR department goes to work with statistical decision making in order to make the best decision possible. This paper is a reflection of how steps in the decisions making process are being used by L-3‚ and can be used by any company to come up with the right conclusions to help solve problems. L-3 is a leader
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Week 3 individual assignment Comprehensive problem 67 Ken is 63 years old and unmarried. He retired at age 55 when he sold his business‚ understock.com. Though Ken is retired‚ he is still very active. Ken reported the following financial information this year. Assume Ken’s modified adjusted gross income for purposes of the bond interest exclusion and for determining the taxability of his Social Security benefits is $70‚000 and that Ken files as a single taxpayer. Determine Ken’s 2009 gross
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Chapter 15: Review Questions and Problems 1 & 6 What are the alleged advantages of a fixed over a flexible exchange rate system? Fixed rates has a smaller degree of uncertainty than flexible rates. Fixed has more stability and less inflation that flexible exchange rates system. Fixed rates have less fluctuation that flexible exchange rates if we were to compare them both. Fixed rates have a greater degree of fixity which helps to fight against inflation. How do advocates of flexible exchange rates
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