Develop a multiple linear regression equation that describes the relationship between the cost of delivery and the other variables.

Your Tasks:
Develop a multiple linear regression equation that describes the relationship between the cost of delivery and the other variables. Do these three variables explain a reasonable amount of the variation in the dependent variable? Estimate the delivery cost for an arrangement that takes 20 minutes for preparation, takes 30 minutes to deliver, and must cover a distance of 12 miles.
Test to determine that at least one regression coefficient differs from zero. Also test to see whether any of the variables can be dropped, rerun the regression equation until only significant variables are included.
Write a management report interpreting the final regression equation, show your analysis in charts, tables, graphs so it is easy for the owner to see the analysis and conclusions, and back up your charts with detailed analysis using formulas and explanations of your statistical analysis steps. The owner wants to know your report is credible but is not a statistician, so make your explanations clear