In Excel, can someone help me with PART G ONWARDS

Here's my file:https://docs.google.com/spreadsheets/d/1Bt9ccQVdcENZLq17iHEcWypKJMMI7JWJkl6dSjJzu8U/edit?usp=sharing

g) For each of the four estimators compute the mean of the sample of 3000 (should be close to Zero h) For each of the four estimators compute the root mean square (RMS) about zero. (SUMPRODUCT anyone?) i) For each of the four estimators use Excel's STDEV.S function to compute the standard deviation. How do these values compare with the results of h)? g) For each of the four estimators compute the mean of the sample of 3000 (should be close to Zero h) For each of the four estimators compute the root mean square (RMS) about zero. (SUMPRODUCT anyone?) i) For each of the four estimators use Excel's STDEV.S function to compute the standard deviation. How do these values compare with the results of h)