QUESTION 9 Suppose the following are the seasonal indices for the first three quarters of the year for a quarterly series: Quarter Q1 Q2 Q3 Seasonal Index 73.1 84.6 106.2 Remember that the seasonal indices should average 100 so you should be able to infer the seasonal index for Q4. Furthermore, suppose that the estimated coefficients from a regression of the deseasonalized series on Time are given below. Coefficients 2486 74.6 Intercept Time What is the forecast for period 113, if period 113 is a Q4? (please round your answer to I decimal place) 5 points Save Answer