Your classmates were invited to complete a MATH 1P98 student survey. The amount of sleep that 290 students reported they got on a typical weeknight are given in the Excel sheet. 1. The first step in preparing the data is to identify any values that should be removed from our analysis. The data was collected in hh:mm form. (For example, 8:15 corresponds to 8 hours 15 minutes.) a. (Nothing to submit.) Optional step: Create a copy of the sheet on Excel. . Right click on the bottom sheet tab and then click Move or copy. In the dialog box, select the sheet you want to copy, check the box Create a copy, and click OK. . Note: By working on a copied sheet, the original data remains available in a separate sheet for later use, if needed. b. (Nothing to submit.) Use Excel to sort the sleep data in ascending order. . Select all cells in the header. In this sheet, you would select cells Al to C1. . Click the Data tab in the top menu and click Filter. . Click the triangle filter beside the header called Sleep and click Sort Smallest to Largest. c. (Submit a screenshot of your written or typed answer.) Examine the sorted times, paying close attention to the data listed at extreme ends of the list. Identify the two sleep times that should be removed from the analysis and provide a justification of each removal. d. (Nothing to submit.) On the Excel sheet, delete the rows of survey data for the observations you identified in part c. Hint: You should have 288 observations remaining