PART I. HYPOTHESIS TESTING PROBLEM 1 A certain brand of fluorescent light tube was advertised as having an effective life span before burning out of 4000 hours. A random sample of 84 bulbs was burned out with a mean illumination life span of 1870 hours and with a sample standard deviation of 90 hours. Construct a 95 confidence interval based on this sample and be sure to interpret this interval. Answer Since population standard deviation is unknown‚ t distribution can be used construct
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COURSE : ECONOMICS EXAMINATION : APRIL 2011 QUESTION 1 A) What is market equilibrium? With the aid of a diagram‚ explain how it is determined? (4marks) Answer: Market equilibrium is a situation in which the supply curve of an item is exactly equal to its demand curve. Since there is neither surplus nor shortage in the market‚ price tends to remain stable in this situation. Price D S E P S D 0 Q
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Updated March 2011 DNA‚ RNA structure and function Why are multiple copies of tRNA and rRNA genes needed? a. These RNAs are destroyed very rapidly. b. These RNAs are very stable. c. These RNAs are needed in large amounts. d. These RNAs do not benefit from the extra amplification step that occurs for protein-encoding genes. e. c and d If you treat mitotic chromosomes with solutions that extract histones‚ what happens? a. The chromosomes become more condensed
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Revenues measure the inflow of net assets resulting from selling products or services. Failure to adjust for depreciation results in the overstatement of assets and the understatement of net income. (FALSE). Which of the following transactions would not affect owners’equity? Purchasing supplies for cash. Increased earnings do not always generate an increase in cash flow. CFO includes: selling goods‚ not: buildings‚ dividends‚ long-term debt. Depreciation reduces net income but is not related to a
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$500? Explain. Price will rise by less than $500. The only way price could rise by exactly $500 is if demand (or supply) is perfectly inelastic. 2. The FICA tax funds Social Security programs. Congress established a 15.3% FICA tax rate; by law‚ the tax burden is split 50-50 between employer and employee. So‚ 7.65% of the employee’s earnings on each paycheck is deducted for FICA taxes‚ and 7.65% of the employee’s earnings is paid in FICA taxes by the employer. Is the economic incidence
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94 D. .92 E. .38 Answer: D 2. Suppose that for a certain football game the probability that the home team will be ahead at half-time is 0.60 and the probability that the home team will be ahead at half- time as well as at the final gun is 0.45. What is the probability that the home team will win this game given that it is ahead at the half? A. .45 B. .75 C. .15 D. .27 E. None of the above. Answer: B 3. A company markets two products
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Question 1: (1) Ten multiple choice questions. When a firm’s investment decisions have different consequences for the value of equity and the value of debt‚ managers may take actions A) that benefit shareholders at the expense of debt holders. B) to decrease costs of distress. C) to reduce fixed costs. D) to increase debt values. (2) Which of the following is NOT an advantage of private debt over public debt? A) B) C) D) It does not dilute the ownership of the firm. It has to have interest
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5 out of 5 points What do affirmative action programs involve? Answer Selected Answer: Firms are expected to survey current female and minority employment by department and job classification. Correct Answer: Firms are expected to survey current female and minority employment by department and job classification. Question 3 5 out of 5 points The 1984 Supreme Court decision in Memphis Firefighters v. Stotts Answer Selected Answer: upheld seniority over affirmative
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ARTICLE SYNOPSIS In your own words‚ summarize the article. The article details the growing world of businesses and the law’s need to keep up to regulate new developments. A lot of companies now offer services or products online in some capacity‚ making them an E-Business. Some companies operate almost entirely online‚ such as Amazon. Other companies that operate mostly offline‚ such as Coca Cola‚ still maintain some sense of presence online. As businesses grow in these capacities‚ they must
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Family name: Student number: Signature: 76 29 D rI eUNIVERSITY OF TORONTO ad lo Faculty of Arts and Science n ow D ID: 6639 ECO206Y1Y (Microeconomic Theory) Instructor: Victor Couture and Rebecca Lindstrom Item Final Examination August 2011 9 Duration: 180 minutes (3 hours) 63 6 D mI Examinations Aids: te Non-Programmable Calculators I This examination paper consists of 16 pages and 8 questions. Please bring any discrepancy to the attention of
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