=>Using the table below, with a smoothing constant of a = 0.10, forecast income for Week 11 usingexponential smoothing.Week Income19802104011004102058606960108081360a1380101100111068.121127.511064.581375.07

The data of 10 weeks is given.Want to estimate for week 11 using exponential smoothing with a…

Answered: Using the table below, with a smoothing…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The following data table gives information about the change in smartphone sales of two leading companies from 2007 to 2017. Company Smartphones sold in 2007 Smartphones sold in 2017 Smartphones sold in 2027 Apple 2.3 million 214.9 million ? Samsung 435.5 million 321.3 million ? The number of smartphones sold is changing for these companies every year. Suppose that over the next 10 years, from 2017 to 2027, their absolute rates of change of smartphone sales remains the same as the previous 10 years. Using the data table, determine which of the following statements would be true? a. Apple and Samsung will sell approximately the same number of smartphones in 2027. b. Samsung will sell more smartphones that Apple in 2027. c. Apple will sell over 400 million smartphones in 2027. d. Samsung will sell over 400 million smartphones in 2027.
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In economics, utility is a measure of satisfaction or usefulness. The utility of wealth could therefore be thought of as how happy you are as a function of the amount of wealth you possess. When applied to economic measurements, the word "marginal" describes the change corresponding to an increase in the measured quantity. The marginal utility of wealth is how much your happiness increases as your wealth increases. The Law of Diminishing Marginal Utility states that as you consume more, your marginal utility decreases; that is, the more you have of something, the smaller the impact getting more of it affects your happiness. If w is your wealth, and T(w) is your utility of wealth, your marginal utility of wealth at w is M(w) = lim h→0 T(w+h)-T(w) h and the rate at which your marginal utility of wealth is changing at w is M (w+h) — M(w) h C(w) = lim h→0 Suppose w is measured in 10s of thousands of dollars, and T(w) wealth. - 300w w + 1 is the utility of your (a) Find a closed form…
The following table shows the average yearly tuition and required fees, in dollars, charged by four-year American private universities in the school year beginning in the given year. Date Average tuition 2012 $27,870 2013 $29,004 2014 $30,138 2015 $31,272 2016 $32,406 (a) Show that these data can be modeled by a linear function. For each change of 1 year in time there is an increase of $ in tuition. Find its formula. (Let d be the date in terms of number of years since 2012 and T tuition in dollars.) T(d) = 27,870+1134d (b) Plot the data points and add the graph of the linear formula you found in part (a). (c) What prediction does this formula give for average tuition and fees at four-year American private universities for the academic year ending in 2018?$
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The below data represent the advertising expenditure and sales of Liu Liu Ltd from year 2010 to 2019. Table: Advertising Expenditure vs. Sales from 2010 to 2019 Year Advert. Expenditure Sales Growth rate of Ad. Expenditure Growth rate of Sales (x, £000) (y, £000) 2010 19 84 2011 22 108 18% 29% 2012 32 82 46% -24% 2013 42 86 32% 6% 2014 47 84 11% -3% 2015 46 94 -2% 11% 2016 58 103 27% 10% 2017 63 115 8% 12% 2018 70 106 11% -8% 2019 80 142 15% 34% Total 479 1004 a. What is the statistical relationship shown in the table and list out 3 characteristics of this relationship?
50 46 40 30 20 E 20 10 0 I 2 3 5 Number of Catalogs (in thousands) sas (in thousands)
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Using the table below, with a smoothing constant of a = 0.10, forecast income for Week 11 using exponential smoothing. Week Income 1 980 2 1040 3 1100 + 1020 5 860 6 960 1080 18 1360 1380 10 1100 11 1068.12 1127.51 1064.58 1375.07