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In the evaluation of three catalysts used to speed up a chemical reaction, the time in minutes each one has reduced the reaction time is recorded, and the descriptive stationc is presented in the following table. Variable Mean StDey A 6.460 0.615 5.640 1.001 6.660 0.559 6.253 0.832 `n. The calculated test statistics to test if the data present sufficient evidence to indicate a difference in the mean reaction time for the three catayati in a. 3.89 G b. 2.59 OF. 0.12 Od.0.29 Activate Windows