Evaluate real-world situations and present solutions using statistical methods
In the summary tables below, insert only the answers. You will show work after the summary section.
Question 1
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MAD |
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MSE |
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Question 2
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a) Moving average forecast for year 13 |
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b) Weighted moving average forecast for year 13 |
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c) MAD for part a |
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d) MAD for part b |
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e) Recommended forecast method (justify):
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Question 3
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R-squared for Linear model |
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R-squared for polynomial model |
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Regression formula for linear model |
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Regression formula for polynomial model |
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Recommended forecast method (justify):
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Work
Show all your work for the questions below.
Question 1
Show the errors you calculated.
Question 2
Show the two forecasts and the errors.
Question 3
Show the polynomial and linear trendline charts from Excel charting. Do not use multiple regression analysis for this question.