Grades for Khoi Tran: X 8.2 Microsoft Excel: F X MindTap - Cengage L X Excel Online Student X Excel Online Student | X MindTap - Cengage L X Course Hero X + C @ about:blank Excel template - Saved Search (Option + Q) File Home Insert Draw Page Layout Formulas Data Review View Help Editing v Comments Arial 10 B My Av ... Ev ab General $ v 00 . .. C16 " X V fx B C D E F G H I J K L M N 0 Sample Data Interval Estimate of a Population Mean: Formula Used 20 Sigma Unknown Case 8 MULAWN 13 Sample Size 3.854496447 =STDEV.S(A2:A9) 16 Mean 15.5 =AVERAGE(A2:A9) 16 16 Standard Deviation #N/A 20 Confidence Coefficient 15 Level of Significance #N/A Margin of Error #N/A Point Estimate #N/A C.I. Lower Limit #N/A C.I. Upper Limit #N/A 20 24 28 29 E Sheet1 + Calculation Mode: Automatic Workbook Statistics Give Feedback to Microsoft - 100% +