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Check my work 4 Click here for the Excel Data File Actual series are plotted along with the superimposed linear and exponentiCh 4 Linear Trend Exponential Trend Variable Intercept t Standard Error 8.33 points eBook Hint b-2. Calculate the MSE and MADHome Insert Draw Page Layout Formulas Data Review View Tell me Calibri (Body) 11 AP General TL II III Milli Paste BIU $ % 40

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Answer #1

We will be using excel to solve this problem.

Please find below attached images for clearly explained solution for this problem.

1)

casonate Pog Path :- Insert > Scatter - [simple Theo Right click on any of point on this plot Goto Add Trendline ist select

In the below scatter plot we have displayed the equation and R2 value as well.

Hence from R2 we will be getting the exponential trend as a good fit for the given data.

Scatter Plot y = 0.7889x + 1.0948 R2 = 0.8923 25 y = 3.2005e0.0892X 20 R2 = 0.9162 15 LO у Linear (y) Expon. (y) 5 O 1 0 5 10

# Below is the detail theory of how to calculate MSE and MAD for the given data.

Page # To calculate MSE and MAD s MSE( Mean Squared Error) and MADC Mean Absolute Deviation) formula : MSE Ely; -ý;)² MAD = I

Date Page 163 of both linear that :- By comparing the MSE and MAD Values and Exponential we can Exponential method perform be

Below is the screen shot of the excel workout.

To get the modulus value in calculation of MAD, use command "=abs(value1-value2)"

А B с D E F G H 1 t 2 1 3 2 4 3 5 4 6 5 7 6 8 7 9 8 9 10 11 10 y y = 0.7889x + 1.0948 y = 3.2005e 20.08922 for MSE(linear) fo

Thank you !

All the best !!

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