Interpret the first quarterly index. In other words, what is the value of the se
ID: 3222462 • Letter: I
Question
Interpret the first quarterly index. In other words, what is the value of the series in the first quarter as compared to the average?
Interpret the fourth quarterly index. In other words, what is the value of the series in the fourth quarter as compared to the average?
Make a forecast for all four quarters of next year. (Round your answers to 2 decimal places.)
Six years of quarterly data of a seasonally adjusted series are used to estimate a linear trend model as t = 143.70 + 1.23t. In addition, quarterly seasonal indices are calculated as 1 = 0.95, 2 = 0.97, 3 = 1.11, and 4 = 1.15.
Explanation / Answer
a1|) 5% below
a2)15% above
b)as for first quarter t =6*4+1=25
hence deseasonalized trend for quarter 1=143.70+1.23*25=174.45
deseasonalized trend for quarter 2=143.70+1.23*26=175.68
deseasonalized trend for quarter 3=143.70+1.23*27=176.91
deseasonalized trend for quarter 4=143.70+1.23*28=178.14
therefore
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