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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