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CAT Scanners

CAT Scanners. CAT head CAT body scanners Year units unit sales 1 1 0 4 1 10 1 34 9 33 30 26 39 5 17 . CAT Scanners. CAT head CAT body scanners Year cumulat . cumulat . 1 0 0 1 0 5 1

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CAT Scanners

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  1. CAT Scanners • CAT head CAT body scanners • Yearunits unit sales • 1 1 0 • 4 1 • 10 1 • 34 9 • 33 30 • 26 39 • 5 17

  2. CAT Scanners • CAT head CAT body scanners • Yearcumulat. cumulat. • 1 0 0 • 1 0 • 5 1 • 15 2 • 49 11 • 82 41 • 108 80

  3. Fitting the Cat Scan Examples Regression: unit sales (t) = c + b*cumulative sales (t-1) + a*cs2 Head: R2 = .82 unit sales (t) = 5.44819 + 1.21191 cumul. -.01142 cumul2 Body: R2 = .90 unit sales (t) = 2.83214 + 1.85994 cumul. -.02119 cumul2 Mhead=113, Mbody=97, or, solve Mhead=110.46, Mbody=89.27 Head: p=.048, q=1.260 p=.049, q=1.261 Body: p=.029, q=1.889 p=.032, q=1.892 c a b c a b

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