# Case Study 395

### Question Description

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.

• Develop a linear regression model to predict Wal-Mart revenue, using CPI as the only independent variable.
• Develop a linear regression model to predict Wal-Mart revenue, using Personal Consumption as the only independent variable.
• Develop a linear regression model to predict Wal-Mart revenue, using Retail Sales Index as the only independent variable.
• 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.

• Develop a linear regression model to predict Wal-Mart revenue, using CPI as the only independent variable.
• Develop a linear regression model to predict Wal-Mart revenue, using Personal Consumption as the only independent variable.
• Develop a linear regression model to predict Wal-Mart revenue, using Retail Sales Index as the only independent variable.
• Which of these three models is the best? Use R-square values and Significance F values to explain your answer.
• 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.

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. Develop a linear regression model to predict Wal-Mart revenue, using CPI as the only independent variable.Develop a linear regression model to predict Wal-Mart revenue, using Personal Consumption as the only independent variable.Develop a linear regression model to predict Wal-Mart revenue, using Retail Sales Index as the only independent variable.Which of these three models is the best? Use R-square value, Significance F values and other appropriate criteria to explain your answerIdentify and remove the four cases corresponding to December revenue. Develop a linear regression model to predict Wal-Mart revenue, using CPI as the only independent variable.Develop a linear regression model to predict Wal-Mart revenue, using Personal Consumption as the only independent variable.Develop a linear regression model to predict Wal-Mart revenue, using Retail Sales Index as the only independent variable.Which of these three models is the best? Use R-square values and Significance F values to explain your answer.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.