Standard deviations of treatment efffect

Reference no: EM1391649

RESEARCHERS at a university conducted experiments with poplar trees. Listed below are weights (kg) of poplar trees given no treatment and poplar trees treated with fertilizer and irrigation. Does there appear to be a difference between the two standard deviations?

No treatment: 0.15 0.02 0.16 0.37 0.22

fertilizer and irrigation: 2.03 0.27 0.92 1.07 2.38

What is the variance and the standard deviation for each of the two samples?

Reference no: EM1391649

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