Question: Hera Computer Chips Inc. used the three year quarterly data in the table below to determine the regression equation for forecasting: Y = a +
Hera Computer Chips Inc. used the three year quarterly data in the table below to determine the regression equation for forecasting: Y = a + b*X, where X is the time period, a = 46.55 & b = 2.26. and prepared the additional analysis using a multiplicative seasonal index. With this information, calculate the forecast for the third quarter of Year IV.(carry to 2 decimal places) Quarter Year Period Actual Sales Trend Forecast (using Regression equation) Seasonal Index =Act/Trend
1st I 1 48 48.81 0.98
2nd I 2 41 51.07 0.80
3rd I 3 60 53.33 1.13
4th I 4 65 55.59 1.17
1st II 5 58 57.86 1.00
2nd II 6 52 60.12 0.86
3rd II 7 68 62.38 1.09
4th II 8 74 64.64 1.14
1st III 9 60 66.91 0.90
2nd III 10 56 69.17 0.81
3rd III 11 75 71.43 1.05
4th III 12 78 73.69 1.06
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