Mathematics, 23.12.2020 21:10 MayFlowers

A sample of 11 students using a Ti-89 calculator averaged 31.5 items identified, with a standard deviation of 8.35. A sample of 12 students using a Ti-84 calculator averaged 46.2 items identified, with a standard deviation of 9.99. Can we conclude that the mean number of times identified with the Ti-84 calculator exceeds that of the Ti-89 calculator by more than 1.80

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A sample of 11 students using a Ti-89 calculator averaged 31.5 items identified, with a standard dev...