Use the data from the preceding question for the share of


Use the data from the preceding question for the share of total shipment of music that falls in the category of rock music from 1990-2008.

a. Make a forecast for the share of rock music in 2009 using the exponential smoothing method with α = 0.4.

b. Make a forecast for the share of rock music in 2009 using the exponential smoothing method with α = 0.6.

c. Use the MSE to pick the appropriate speed of decline for making a forecast for the share of rock music in 2009.

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Basic Statistics: Use the data from the preceding question for the share of
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