straight line Linear Trend Equation : Y a bt where : Y read "Y hat" ‚ is the projected value of the Y variable for a selected value of t a the Y - intercept (estimated value of Y when t 0) b the slope of the line (average change in Y for each unit change in t ) t any value of time (coded) that is selected 16-9 Linear Trend 16-10 Use Data Analysis-Regression analysis in Excel to find the best linear relationship between 2 variables: t and Y Code time (t) and use it as the independent
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Raymond Ye Mr. Pettibone IB Physics 2 November 2013 Internal Assessment DESIGN Aspect 1: How does the time a rubber band spends stretching a force of 12.5 N affect the force required to break/snap the rubber band? IV- The time spent stretching the rubber band 12.5 N DV- The force required to break/snap the band Units for Independent Variable- Minutes Units for Dependent Variable- Newtons Aspect 2: Variables that will be kept the same include: -The force of the stretch -Conditions
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estimation we assume some are within a relevant range. . 3. y = a + bX represents the general form of the linear cost function. Answer: True Difficulty: 1 Objective: 2 4. A linear cost function can only represent fixed cost behavior. Answer: False Difficulty: 1 Objective: 2 A linear cost function can represent fixed‚ mixed‚ or variable cost behavior. 5. In a graphical display of a cost function‚ the steepness of the slope represents the total amount of fixed costs. Answer: False
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Statistics Midterm Review Name ____________________________ The next three questions concern the following scenario: A recent Gallup poll asked "Do you consider pro wrestling to be a sport‚ or not?" Of the people asked‚ 81% said "No." The results were based on telephone interviews with a randomly selected national sample of 1‚028 adults‚ 18 years and older‚ conducted August 16-18‚ 1999. 1. The population for this poll appears to be: (a) all professional wrestlers. (b) all adults
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CHAPTER I THE PROBLEM AND ITS BACKGROUND Introduction Business firms whether small or big has engaged several challenges before and after its growth. It undergoes study of the entire business. Efficient and effective decisions in business are needed to implement every day. The business manager has the responsibility to make decisions for the improvement of the company. To make this be possible‚ forecasting of sales is necessary. Sales forecast is a prediction based on past sales performance
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Purpose: In this lab‚ we will heat up a metal rod and measure how much it expands. We will calculate its Coefficient of Linear Expansion‚ α‚ and prove the formula for thermal expansion‚ ΔL = αLiΔT. Also‚ we heat up a known volume of methyl alcohol and calculate its Coefficient of Volume Expansion‚ β‚ and prove the formula for volume expansion of a liquid ΔV = βViΔT. Equipment: Hollow Metal Rods of different metals‚ Steam Generator‚ Stand‚ Burner‚ Flexible Hoses‚ Motion Amplifier‚ Micrometer
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NAME_________________________________ STAMP________________ PERIOD____ PICTURES & GRAPHS A. The Atom 1. Calculate the average atomic mass using the spectrum below. 2. Answer the questions regarding the energy level diagram shown. a) The emission lines for the series above are in the IR‚ Vis and UV regions. Match the series with the region and justify your choice (FYI – AP you do not need to memorize the names of the series. IB will need to know then for next year). b) Would the wavelength
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microeconomics and macroeconomics. 4 The categories of scarce resources and the nature of the economizing problem. 5 About production possibilities analysis‚ increasing opportunity costs‚ and economic growth. 6 (Appendix) About graphs‚ curves‚ and slopes as they relate to economics. 1 Limits‚ Alternatives‚ and Choices (An appendix on understanding graphs follows this chapter. If you need a quick review of this mathematical tool‚ you might benefit by reading the appendix first.) People’s wants
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CHAPTER 6 COST BEHAVIOR TYPES OF COST BEHAVIOR PATTERNS 1. Variable Cost 2. Fixed Cost 3. Mixed / Semi-variable Cost Cost Structure – the relative proportion of fixed‚ variable‚ and mixed costs found within an organization or firm. 1. Variable Cost - its total dollar amount varies in direct proportion to changes in the activity level. Example: Number of Trucks Radiator Cost per Total Radiator
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econometric analysis are interested in “explaining y in terms of x” and confront three issues: 1) Since there is never an exact relationship between y and x‚ how do we account for the “other unobserved” variables? 2) What is the function relationship between y and x? 3) How do we invoke a ceteris paribus
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