X15.52.58332.98946.55.55653.5X2315567503871305642736044503955X310812781212585nn6mm1010X4869161517810416712644Y79.3200.1163.2200.1146177.730.9291.9160339.4159.686.3237.5107.2155 To answer item 17 to 23, use MS Excel data analysisConsider the following data set, in which a maker of asphalt shingles isinterested in the relationship between sales for a particular year andfactors that influence sales.X1 - promotional accounts; X3 - Competing brandsX2 - Active accounts; X4 - Potential and Y - sales in thousands of $If Promotional accounts is 10.2; Active accounts is 61; Competingbrands is 9; and Potential is 11.What would be the sales?sample answer. (2 decimal places)111.02

Given: X1=promotional accountsX2=Active accountsX3=Competing brandsX4=PotentialY=sales in thousands…

Answered: To answer item 17 to 23, use MS Excel…

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 Big Mac index is a way of measuring Purchasing Power Parity (PPP) between different countries. By diverting the average national Big Mac prices to U.S. dollars, the same goods can be informally compared. The Big Mac can also be a good indicator for the individual purchasing power of an economy since he exists worldwide in standard size, composition and quality. Price # of Countries Rel. f. Cum. f 1.50-1.99 2 2.00-2.49 4 2.50-2.99 7 3.00-3.49 9 3.50-3.99 7 4.00-4.49 8 4.50-4.99 9 5.00-5.49 7 5.50-5.99 1 6.00-6.49 2 6.50-6.99 1
Interpolate the Sales for 1990 from the following data. Years : 1988 1989 1990 1991 1992 Sales : 250 290 ? 390 425 Use Parabolic curve method.
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