Please use the Excel dataset for the case $($Store$24$A data$)$ and answer the following questions. You will have to use regression analysis to answer these questions.

$1.$Do employees do a better job the longer they are in the job? For this, analyze if employee tenure is a driver of store performance. Please analyze separately for managers and crew.

$2.$How does tenure matter for performance? Please provide a numerical answer and justify it$.$ Perform this analysis separately for managers and crew.

$3.$How important is employee tenure relative to site location factors? Think of what regression models will help you to answer this question. Perform this analysis separately for managers and crew.

$4.(1)$Does the relationship between tenure and performance vary with tenure level? Perform this analysis separately for managers and crew.

To answer these questions, run regressions using the data provided in the spreadsheet file that accompanies the case. Don$$t include the Skill and Service Quality variables in this analysis.