# Linear regression model to predict revenue

Wal-Mart is the second largest retailer in the world.The data file (WalMart_revenue.xlsx) is included in the Excel data zip file in week one, and it holds monthly data on Wal-Mart’s revenue, along with several possibly related economic variables.

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1)Develop a linear regression model to predict Wal-Mart revenue, using CPI as the only independent variable.

2)Develop a linear regression model to predict Wal-Mart revenue, using Personal Consumption as the only independent variable.

3)Develop a linear regression model to predict Wal-Mart revenue, using Retail Sales Index as the only independent variable.

4)Which of these three models is the best?Use R-square value, Significance F values and other appropriate criteria to explain your answer.

Identify and remove the four cases corresponding to December revenue.

5)Develop a linear regression model to predict Wal-Mart revenue, using CPI as the only independent variable.

6)Develop a linear regression model to predict Wal-Mart revenue, using Personal Consumption as the only independent variable.

7)Develop a linear regression model to predict Wal-Mart revenue, using Retail Sales Index as the only independent variable.

8)Which of these three models is the best?Use R-square values and Significance F values to explain your answer.

9)Comparing the results of parts (d) and (h), which of these two models is better?Use R-square values, Significance F values and other appropriate criteria to explain your answer.

Please use one Excel file to complete this problem, and use one sheet for one sub-problem.Use a Microsoft Word document to answer questions.Finally, upload the files to the submission link for grading.