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Converting a Monthly Trend to an Annual Trend

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Suppose we have run a regression on 48 months of data and the regression equation is Y = 50000 + 1000*x (where x is the month number).

What is the annual trend? Play with some numbers to convince yourself of your answer.

Would this be 12000, why or why not? Please help!

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Suppose the original mean of x is x bar, mean of y is y bar. After converting month to the year, the new mean becomes 1/12xbar, ...

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This solution provides a detailed, step-by-step explanation of the given statistics problem.