A constuction manager is tyying to determine the best installation crew size for installing ceramic tile. She has tried various crew sizes with fre results shown below:

$\backslash$table$[[$Ceasint$,$Square Feet Installed in a Single Day$],[3$ people,$18045],[4$ people,$29921],[5$ people,$36101]]$

Please answer the following two questions, based on this information.

$6.$ Based on these readings of labor productivity for these crews, what crew size do you recommend?