Practice Problems 1-KEY 1. The closing stock price of Ahmadi‚ Inc. for a sample of 10 trading days is shown below. Day Stock Price 1 84 2 87 3 84 4 88 5 85 6 90 7 91 8 83 9 82 10 86 For the above sample‚ compute the following measures. a. b. c. The mean = ∑X/n = 860/10 = 86 The median = (85+86)/2 = 85.5 The variance = ∑ X - X 2/ n-1 = {(84-86)2 + (87-86)2 + (84-86)2 + (88-86)2 + (85-86)2 + (90-86)2 + (91-86)2 + (83The standard deviation = √8.89 = 2.98 The coefficient of variation = 2.98/86 * 100%
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QUESTION 21 The finishing process on new furniture leaves slight blemishes. The table below displays a manager’s probability assessment of the number of blemishes on one piece of new furniture. Number of Blemishes 0 1 2 3 4 5 Probability 0.34 0.25 0.19 0.11 0.07 0.04 1. On average‚ how many blemishes do we expect on one piece of new furniture? 2. What is the variance of blemishes on one piece of new furniture? (round to the nearest hundredth) QUESTION 22 The probability
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Chapter 3 Multiple Choice 1. What is externality a. Looking at a problem from an external view b. A private behavior that has broader social consequences* pg 56 c. Weighing the costs and the benefits of a decision d. F 2. Who deals with externalities in a market economy a. The government* pg 56 b. Local businesses c. Volunteers d. Individuals 3. Which one of these can you have property rights on a. House b. Car c. Inventions d. All of the above* pg 66 4. What is the average cost of bringing a new
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where would you expect the mean of the distribution to lie? Explain briefly. The distribution is skewed left‚ so the mean will be left of the median. d. What percent of the observations lie below 0.5? Above 1.5? 2. The following are the salaries of employees in a small business: 15‚000 15‚000 17‚500 23‚500 23‚750 25‚000 26‚000 27‚500 29‚000 45‚000 a. Before using your calculator‚ do you think that the mean or the median for these values will be higher? Why do you think so? b. What are the mean and median of the salaries
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Group: 5Vi Number: 1550633 Name: Estefania Gutierrez Sanmiguel Team: 4 Review Questions Chapter 3 1 What roles do GAAP‚ the FASB‚ and the PCAOB play in the financial reporting activities of public companies? 2 Describe the purpose of each of the four major financial statements. The purposes of each of the 4 major financial statements are: Income Statement—the purpose of the income statement is to provide a financial summary of the firm’s operating results during a specified time period. It includes
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Case Problem 1: National Health Care Association(Descriptive Statistics) The National Health Care Association is concerned about the shortage of nurses the health care profession is projecting for the future. To learn the current degree of job satisfaction among nurses‚ the association has sponsored a study of hospital nurses throughout the country. As part of this study‚ a sample of 50 nurses was asked to indicate their degree of satisfaction in their work‚ their pay and their opportunities for
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Chapter 3 Reading Questions: 1. Core Case Study: “Have you thanked your insects today?”- Explain why insects are significant. Many of the earth’s plant species depend upon insects to pollinate them. Carnivorous insects‚ such as the praying mantis‚ control the ‘pest’ insect population. 2. What percentage of the species on this planet consists of insects? Animals? Plants? 53% are insects; 20% are other animals; 18% are plants. 3. Give three examples of how we benefit from microbes. Soil bacteria
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Chapter 3 Analyzing Bank Performance 1. Which of the following is not a characteristic of a typical commercial bank? a. Most banks own few fixed assets. b. Most banks have a high degree of operating leverage. c. Most banks have few fixed costs. d. Many bank liabilities are payable on demand. e. Banks generally operate with less equity capital than non-financial firms. Answer: b 2. Bank assets fall into each of the following categories except: a. loans. b.
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Statistics In Business Quantitative Analysis for Business September 22‚ 2013 Dr. John Kwagyan Introduction Statistics is a tool used in businesses for planning and measuring the various activities a business is engaged in. Descriptive and inferential statistics are two different types of statistics used in a business. Statistics is the most widely used quantitative method in business. Statistics describes a set of data and then it draws a conclusion from the data
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Statistics in Business Quantitative Analysis for Business University of Phoenix Tanya Bailey April 22‚ 2013 Statistics can sometimes be difficult for some individuals. Understanding the concept of statistics‚ which is known as the science of data‚ may help a person in the business world. This involves classifying‚ summarizing‚ analyzing‚ collecting‚ and interpreting numerical information. The information gathered from statistics can help startup companies‚ and even
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