Statistical Sciences 2037A/B Study Guide - Quiz Guide: Nail Polish, Simple Random Sample, Revlon
10 Mar 2020
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Spinner hansen et al. (2008) studied a species of spider whose females often eat males that are trying to mate with them. The researchers recorded whether the survival of the males in the two groups differed. The explanatory variable is whether the males are eaten by females. The response variable is the survival of the males. A recent health scare has caused the london ontario infection control board (icb) to increase the rigour of their inspection of nail salons. The concern is that individual bottles of nail polish at one salon, cali. Testing the bottles for contamination makes them unusable, so the icb plans to take only a sample of bottles for testing. The nail salon carries six (6) different brands of nail polish (e. g. opi, revlon, etc. ); for each brand, the salon has three (3) types of finishes (i. e. matte, gloss, or glitter), and ten (10) colours for each type of finish.
