percent error (MAPE) are shown. Correlation Bias MAD MSE MAPE Naïve -- 541.38 6865.52 69‚856‚200 .19 Moving Average (3 periods) -- 491.36 6‚138.27 59‚540‚560 .17 Weighted Moving Average (3 period; .6‚ .3‚ .1) -- 424.81 6‚501.58 61‚107‚180 .18 Exponential smoothing (alpha = 0.5) -- 794.28 5‚880.56 50‚755‚960 .16 Trend Analysis .54 0.00 4‚355.70 31‚285‚700 .12 Seasonal Additive Decomposition .97 0.00 1‚251.26 2‚386‚650 .03 It is obvious that the superior
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PROBLEM 4.1 A) (374 + 368 + 381) / 3 = 374.33 Pints B) Forecast: (381 x .1) = 38.1 (368 x .3) = 110.4 (374 x .6) = 224.4 38.1 + 110.4 + 224.4 = 372.9 Pints C) Week Of Pints Used Forecast with exponential smoothing applied 31st Aug 360 360.00 7th Sep 389 360.00 14th Sep 410 365.80 21st Sep 381 374.64 28th Sep 368 375.91 5th Oct 374 374.33 12th Oct 374.26 Forecast : 374.26 Pints PROBLEM 4.5 A) (3700 + 3800) / 2 = 3750 Miles
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however‚ environmental regulations became more relaxed in spite of the mounting evidence for global climate change. 2. Explain the main point concerning exponential growth and whether it is good or bad. Compare exponential growth to a logistic growth curve and explain how these might apply to human population growth. What promotes exponential growth? What constrains population growth? The population growth is dependent and thus proportional to the birth rate‚ which is the main variable.
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College Algebra Year: 1st Year Topic: Functions Designer: Frago‚ Christine Joy S. Stage 1 – Desired Results Established Goals: This section aims to: 1. distinguish a function from a mere relation; and 2. find the domain and range of functions or relations Understandings: Students will understand… the definition of relation the definition of function the relationship between relation and function Essential Questions: Is the relation a function? How do you define a relation? What
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Chapter 7 Problem Summary Problem Solutions 7.1 See file Ch7.1.xls a. Yes‚ a stationary model seems appropriate b. Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0% Intercept 20.16667 1.373732 14.6802 4.3E-08 17.1058 23.22753 17.1058 23.22753 Period -0.07692 0.186653 -0.41212 0.688949 -0.49281 0.338967 -0.49281 0.338967 From regression output‚ t = -.412 and p = .689. A stationary model seems appropriate since the linear term‚ Period
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Life-time examples: 1. In the Deliotte report‚ it is said 44% of respondents list business intelligence systems as enablers or disruptors that may threaten their business model‚ which makes it second most concerning technology threat. 2. One example of how business intelligence systems have been maximised is at women’s underwear manufacturer Maidenform. Their CIO Bob Russo said recently after implementing BI‚ “Providing targeted information at the right place and time is central to improving the
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Functions Functions are special types of mappings such that every element of the domain is mapped to exactly one element in the range. This is illustrated below for the function f (x) = x + 2 The set of all numbers that we can feed into a function is called the domain of the function. The set of all numbers that the function produces is called the range of a function. Often when dealing with simple algebraic function‚ such as f (x) = x + 2‚ we take the domain of the function to be the
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1. This problem is in reference to students who may or may not take advantage of the opportunities provided in QMB such as homework. Some of the students pass the course‚ and some of them do not pass. Research indicates that 40% of the students do the assigned homework. Of the students who do homework‚ there is an 80% chance they will pass the course. The probability of not passing if the student does not do the home work is 90%. What is the probability of a student not doing homework or
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Table of Contents Project Statement 1 Simple Layout of the Starbucks 1 Data Collection and Analysis 1 Inter Arrival Time 3 Service at the Counter 4 Service Time for Barista 1 5 Service Time for Barista 2 6 Observation Table …………………………………………………………………………………………………………………………………….7 Project Statement Starbucks is the largest coffee house company in the world. They have over 16‚000 stores in over 50 countries. We have one of their outlets in our university. We chose
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Function Discovery Quick Reference Sheet by Maxwell Cohen Table of functions used in ENGR 132 Type of equations General form The plot that shows your data as linear Linear y=mx + Linear Standard graph b Y vs. X Exponential X y=bemx ln(y) =mx+ln(b) Y = mx+B semilogy mx y=b10 log(y) =mx+log(b) log(Y) vs. X Logarithmic* x=bemy ln(x) =my+ln(b) X = my+B semilogx my x=b10 log(x) =my+log(b) Y vs. log(X) Power y=bxm ln(y)=m*ln(x)+ln(b) Y = mX+B log-log log(Y) vs. log(X) *logarithmic equations with calculations
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