I need help with C. I need an explanation and not just an answer! Thanks! Proble

Question

I need help with C. I need an explanation and not just an answer! Thanks!

Problem 3-6

Using a simple three-month moving average, make a forecast for this month. (Round your answer to the nearest whole number.)

Using simple exponential smoothing, what would your forecast be for this month if the exponentially smoothed forecast for three months ago was 450 units and the smoothing constant was 0.20? (Round your answer to the nearest whole number.)

Explanation / Answer

using s+(x1-x2) / k

=0.20+450-x2 / 3

358=0.20 +450-x2/3

358x3 =0.20x3 +450-x2

1075/0.60= 450-x2

-1341.6 =x2

-1342 answer

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