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ee. In addition, inflation a nodel of the form

ee. In addition, inflation a nodel of the form

MATLAB: An Introduction with Applications
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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From its past behavior, John knows that the value of a stock has a cyclical component that increases for the first three months of each year, falls for the next six, and rises again for the last three. In addition, inflation adds a linear component to the stock's price. John is seeking a model of the form f(t) = mt + b + A sin with t in months since Jan 1. He has the following data in the table: Jan 1 Apr 1 Jul 1 Price $20.00 $37.50 $35.00 $32.50 $50.00 Date Oct 1 Jan 1 a) What is the length of the period in his model? b) Determine two months when the Price is on the slanted midline. c) Find value of m, b, and A so that f fits the data.
Transcribed Image Text:From its past behavior, John knows that the value of a stock has a cyclical component that increases for the first three months of each year, falls for the next six, and rises again for the last three. In addition, inflation adds a linear component to the stock's price. John is seeking a model of the form f(t) = mt + b + A sin with t in months since Jan 1. He has the following data in the table: Jan 1 Apr 1 Jul 1 Price $20.00 $37.50 $35.00 $32.50 $50.00 Date Oct 1 Jan 1 a) What is the length of the period in his model? b) Determine two months when the Price is on the slanted midline. c) Find value of m, b, and A so that f fits the data.
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What two months does the price land on the slanted midline?  Not between which two months.  Thank you.

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