BBA (Fall - 2014) Business Statistics Theory of Probability Ahmad Jalil Ansari Business Head Enterprise Solution Division Random Process In a random process we know that what outcomes or events could happen; but we do not know which particular outcome or event will happen. For example tossing of coin‚ rolling of dice‚ roulette wheel‚ changes in valuation in shares‚ demand of particular product etc. Probability It is the numeric value representing the chance‚ likelihood‚ or possibility
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Answer No. 1 Production possibility curve is a particular form of curve‚ which shows the possibility of production in a particular economy (Gwartney‚ Stroup‚ Sobel‚ Macpherson p.28). In an economy‚ the resources are scarce‚ therefore‚ it is important for the economy to make sure that‚ it keeps a balance between the productions and utilizes its resources appropriately. If the production possibility curve of an economy will move outwards then‚ the long run supply curve will have a positive change
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Basics of Statistics Jarkko Isotalo 30 20 10 Std. Dev = 486.32 Mean = 3553.8 N = 120.00 0 2400.0 2800.0 2600.0 3200.0 3000.0 3600.0 3400.0 4000.0 3800.0 4400.0 4200.0 4800.0 4600.0 5000.0 Birthweights of children during years 1965-69 Time to Accelerate from 0 to 60 mph (sec) 30 20 10 0 0 Horsepower 100 200 300 1 Preface These lecture notes have been used at Basics of Statistics course held in University
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Problem Set 1 Complete all questions listed below. Clearly label your answers. 1. The receipts and year of release of the five movies with the largest nominal box office revenues‚ along with the CPI data of each year are presented below. Assuming that the receipts for each of the movies were derived during their year of release‚ convert the receipts for each to real dollars for the year 2010 (2010 CPI 218.1). Put the movies in order from largest to smallest real box office receipts. Movies
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Problem Set 3 Name Problem Set 3 is to be completed by 11:59 p.m. (ET) on Monday of Module/Week 6. 1. Data for the market for graham crackers is shown below. Calculate the elasticity of demand between the following prices. Price of crackers Quantity Demanded (per month) $3 80 $2.5 120 $2 160 $1.5 200 $1 240 $1.00 - $1.50: ___$-0.45________________________________ $1.50 - $2.00: ____$_-0.77______________________________ $2.00 - $2.50: _____$_-1.28_____________________________ $2.50 - $3.00: ____$_-2
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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 do you need to make? According to Lind‚ et al. (2005)‚ when population standard deviation is unknown‚ and the sample is smaller than 30‚ a t distribution should be used. We need to assume that the sample is from a normal population (pp. 291-293). c. For a 90 percent confidence interval‚ what is the value of t
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Problem Set II Problem P9 17: Jack Hammer FV (Table 1) at 11% discount rate 2.00 x .901 = $1.80 2.20 x .802 = $1.79 2.40 x .731 = $1.75 33.00 x .731 = $24.12 -------- $29.46 Problem P9 - 22: Alternative Present Values: Your rich godfather has offered you a choice of one of the three following alternatives: $10‚000 now; $2‚000 a year for eight years; or $24‚000 at the end of eight years. Solution: (first alternative)
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Homework Problem Set 4 1. Because Q=12-2P inverse demand P = -0.5 Q+6 For “half price” case‚ P = 2.5‚ Q=7 consumer surplus = 7*(6-2.5)/2 = 12.25 For “buy one‚ get one free” case‚ when original P = 5‚ Q = 4 instead of 2‚ total benefit TB = (4+6)*4/2 = 20 On the other hand‚ payment is 2*5=10 dollars‚ so consumer surplus will be = 10 Thus “half price” gives more surplus. 2. cost minimizing manner‚ marginal product of typewriter/marginal product of word processor=rent of typewriter/rent
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Chapter 2—Introduction to Probability PROBLEM 1. A market study taken at a local sporting goods store showed that of 20 people questioned‚ 6 owned tents‚ 10 owned sleeping bags‚ 8 owned camping stoves‚ 4 owned both tents and camping stoves‚ and 4 owned both sleeping bags and camping stoves. Let: Event A = owns a tent Event B = owns a sleeping bag Event C = owns a camping stove and let the sample space be the 20 people questioned. a. Find P(A)‚ P(B)‚ P(C)‚ P(A C)‚ P(B C). b
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Problem Set 5 Complete all questions listed below. Clearly label your answers. 1. What impact will an unanticipated increase in the money supply have on the real interest rate‚ real output‚ and employment in the short run? How will expansionary monetary policy affect these factors in the long run? Explain. An unanticipated increase in the money supply will have a significant negative or positive impact on different areas of the economy. Real interest rate will decrease in the short run when money
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