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On Friday night, the owner of Chez Pierre in downtown Chicago noted the amount spent for...

On Friday night, the owner of Chez Pierre in downtown Chicago noted the amount spent for dinner at 28 four-person tables. 113 85 84 156 89 119 112 151 131 127 83 71 130 115 57 113 52 176 162 81 176 155 78 180 56 177 169 137 Click here for the Excel Data File (a) Use Excel or MegaStat to find the mean, midrange, geometric mean, and 10 percent trimmed mean. (Round your answers to 2 decimal places.)

Mean = 119.12

Midrange = 116

Geometric mean =111.76

Trimmed mean =

(I can't find the trimmed mean, the answer I get in excel is not right)

Math   Statistics-And-Probability   
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