for a more detailed treatment. Copyright © 2012 by Educational Testing Service. All rights reserved. ETS‚ the ETS logo‚ LISTENING. LEARNING. LEADING. and GRE are registered trademarks of Educational Testing Service (ETS). Table of Contents ARITHMETIC .............................................................................................................................. 1 1.1 Integers.......................................................................................................
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a more detailed treatment. Copyright © 2012 by Educational Testing Service. All rights reserved. ETS‚ the ETS logo‚ LISTENING. LEARNING. LEADING. and GRE are registered trademarks of Educational Testing Service (ETS). Table of Contents ARITHMETIC .............................................................................................................................. 1 1.1 Integers......................................................................................................
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Statistics Professor Issam MerhiStrayer University August 17‚ 2014 Mean‚ Median and Standard Deviation Explaining the make up a data description one must calculate the mean‚ median and standard deviation. To determine the mean‚ also known as the arithmetic average‚ is found by adding the value of the data and diving by the total numbers of values. In this case of a Bottle company study with thirty different bottles. The mean is 15.2‚ which was able to be reach by calculating the value of 30 bottles
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4.4‚ 4.6 mode note: software did not identify 4.8‚5.4‚7 Measures of Dispersion: 6 range 2.137 variance 1.462 standard deviation 1.129 mean deviation Discussion: Microsoft Excel software was used for all calculations. The arithmetic mean (average) was calculated to be 4.56. It is understood that this measure of central tendency is affected by extreme scores. The median (middle value) for this even numbered sample of 32 is 4.6. This value suggests that the mean is being
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The market risk premium is the geometric mean of 5.9%. The geometric mean was used‚ as it is a common measure for measuring the results of a portfolio. The geometric mean uses percentages and it is therefore much more accurate than the standard arithmetic mean. c. The Beta that was used to gain a return on equity equivalent to 10.5% was 0.8‚ the average of all the Betas from 1996 to the present. Although this is a good measure to use‚ in actuality the Beta of 0.69 for the recent year of 2001 is
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Fourth term End term exam 2011 (1) Section B 2. b From a factory producing metal sheet‚ following defective were analyses in every lot size. Prepare relevant chart only UCL and LCL. Lot Size | 100 | 125 | 90 | 120 | 110 | Defective | 6 | 7 | 4 | 8 | 10 | Solution Since the Lot size are different we have to use ‘u’ chart. Sample NO | LOT Size | Defective | Proportion of defective | UCL | LCL | 1 | 100 | 6 | 0.06 | 0.140245
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of return on this investment over the past year? c. If the inflation rate last year was 4 percent‚ what was your total real rate of return on this investment? (Hint: use the Fisher equation) 3. Using the following returns‚ calculate the arithmetic average returns‚ the variances‚ and the standard deviations for X and Y. 4. You bought one of Great White Shark Repellant Co.’s 8 percent coupon bonds one year ago for $1‚030. These bonds make annual payments and mature six years from now. Suppose
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Accuracy and Bias In general‚ a set of forecasts will be considered to be accurate if the forecast errors‚ that is‚ the set of et values which results from the forecasts‚ are sufficiently small. The next section presents statistics based on the forecast errors‚ which can be used to measure forecast accuracy. In thinking about forecast accuracy‚ it is important to bear in mind the distinction between error and noise. While related‚ they are not the same thing. Noise in the demand data is real and
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Stellar Numbers Results 1. Triangular Numbers Observation of the number pattern of polynomial type or different pattern needed. Identifying the order of the general term by using the difference between the succeeding numbers. Students are expected to use mathematical way of deriving the general term for the sequence. Students are expected use technology GDC to generate the 7th and 8th terms also can use other graphic packages to find the general pattern to support their result The
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this calculation an estimated earnings per share for the following year was found to be $4.11. This is the 2010 earnings per share of $3.72 increased by the quoted 10.4% (which is also roughly the growth rate over the last 6 years). If the 1 arithmetic average of the dividend payout ratio is taken over the life of Walmart‚ it comes to 14.4%‚ therefore this will be used in the calculation of P0 . P0 = E1 × p Ke × (1 − (1 − p)) $4.11 × 14.4% = 7.0% × 14.4% = $58.77 (3.1) 3.1.2 Forecasted
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