A geologist is maing repeated measurements (in grams) on themass of a rock. It i

Question

A geologist is maing repeated measurements (in grams) on themass of a rock. It is not known whether the measurments are arandom sample from an approximatley normal population. Below arethree sets of replicate measurements, listed in the order they weremade. For each set of readings, state whether the assumptionsnecessary for the validity of the t test appear to be met. If theassumptions are not met, explain why. a. 213.03 212.95 213.04 213.00 212.99 213.01 221.03 213.05 b. 213.05 213.00 212.94 213.09 212.98 213.02 213.06 212.99 c. 212.92 212.95 212.97 213.00 213.01 213.04 213.05 213.06 A geologist is maing repeated measurements (in grams) on themass of a rock. It is not known whether the measurments are arandom sample from an approximatley normal population. Below arethree sets of replicate measurements, listed in the order they weremade. For each set of readings, state whether the assumptionsnecessary for the validity of the t test appear to be met. If theassumptions are not met, explain why. a. 213.03 212.95 213.04 213.00 212.99 213.01 221.03 213.05 b. 213.05 213.00 212.94 213.09 212.98 213.02 213.06 212.99 c. 212.92 212.95 212.97 213.00 213.01 213.04 213.05 213.06

Explanation / Answer

A. note met extreme outlier B. met: histogram appears unimodal, symmetric; normal probabilityplot reasonably straight C. questionable: data is left-skewed

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