Mathematics, 04.10.2019 23:20 eddy3625

Toxaphene is an insecticide that has been identified as a pollutant in the great lakes ecosystem. to investigate the effect of toxaphene exposure on animals, groups of rats were given toxaphene in their diet. a study reports weight gains (in grams) for rats given a low dose (4 ppm) and for control rats whose diet did not include the insecticide. the sample standard deviation for 22 female control rats was 28 g and for 18 female low-dose rats was 51 g. does this data suggest that there is more variability in low-dose weight gains than in control weight gains? assuming normality, carry out a test of hypotheses at significance level 0.05.

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Toxaphene is an insecticide that has been identified as a pollutant in the great lakes ecosystem. to...