# Examine the following summary output from Excel to answer questions that follow. SUMMARY OUTPUT R Square...

###### Question:

Examine the following summary output from Excel to answer questions that follow. SUMMARY OUTPUT R Square Adjusted R Square Standard Emor 0 9397848 0.8831955 0 8520477 34997867 20 ANOVA MS 1389.222401 347 3056 28.35493 0.00007729 83 7275992 12.248507 Reidual Total 15 19 157295 Coeicients Standard tmor tSta 88 53136 04969034 0.0018124 -00161801 11.51700364 76869966 14-06 0.272030159 1.626648 0047719 0.001405434 12895335 00216742 0011211971 1441326 0.0170043 1945621-06 08455571 00311086 a. Write the regression model (equation) that incorporates all the variables b Should one include all the independent variables in the model? In other words is this model a good prediction equation? Justify Suppose that the model with only x1 and x2 has R-squared value of 0.79 Has the addition of the other variables improved euracy of the regression model? Be specific. Why?

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