Hello- can you pls help with the attached questions. In an Excel workbook, work Problem 15.31 parts a and b, and Problem 17.27 . The text of the problems and the Excel data files are attached. Work the problems in separate tabs. Use the appropriate Data Analysis routines to produce output needed to answer the questions posed with the problems. Show the original data, the Data Analysis output, appropriate graphs and your explanation of how you used the output to answer the questions. Do all of your work within the tab for each problem.