Answer to Question #79234 in Statistics and Probability for Ratsoane

Question #79234

The number of laptops per quarter sold by computer outlet, for 3 consecutive years
Q1 Q2 Q3 Q4
2011 195 216 232 300
2012 158 228 183 298
2013 180 198 200 307

1.Determine the adjusted seasonal indices
2.Show that the linear regression equation is given by y= 210.3788 + 2.1853x
Hint: Use 1,2,3... for Q1 of 2011,Q2 of 2011, Q3 0f 2011, ...
3.Use the results of 3.1 and 3.2 above to estimate the number of laptops sold by outlet in Q3 of 2014

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