excel formula with E10,E11,E12 pls

E Merge & Center . Conditional Formount an Cell Imet Delete Format Foraning - GHe- Sykes. 105 M 105 CONFIDENCE INTERVAL FOR . WHEN D IS UNKNOWN 117 112 148 Given the accompanying sample data, use Excel's formula options to find the 90 confidence interval for the population mean. Assume that the population is normally distributed. 144 106 124 Complete the following analysis. Do not hard code values In your calculations. 137 128 Confidence Coefficient 09 133 Sample Size n 20 107 19 11 123 0/2 0.05 108 106 138 Lower Limit of Confidence Interval Compute the lower limit of the confidence Interval using A1:A20, E10, E11, AND E12. 121 129 Upper Limit of Confidence Interval Compute the upper limit of the confidence Interval using A1:420, E10, E11, and E12. 130 107 141 Sheeti