After taking AN300, C&A; decides to use Excel to perform a linear regression for
ID: 435157 • Letter: A
Question
After taking AN300, C&A; decides to use Excel to perform a linear regression forecast on the sales of HDTV. C&A; enters the data collected for the last six months on Excel as follows Month xSales ($000) March1 April May June July 100 200 500 450 380 550 2 3 4 August 6 Based on the given summary report output of the regression analysis, what is the forecast for December? Lower Upper 95% | 95% Intercept 89.33 104.170.86 0.44-199.88 378.55 78.29 | 26.75 | 2.93 | 0.04 | 4.02 |152.55 Standard Coefficient t Stat P-value Error 872.23 971.,59 O 793.94 256.95 167.62Explanation / Answer
Correct Answer:
A
Working note:
As per the given data,
Sales = 89.33 + X*78.29
For December, X = 10
December sales forecast = 89.33 + 10*78.29
December sales forecast = 872.23
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