Mathematics, 23.10.2019 20:50, kony345p

Words were displayed on a computer screen with background colors of red and blue. results from scores on a test of word recall are given below. use a 0.05 significance level to test the claim that the samples are from populations with the same standard deviation. assume that both samples are independent simple random samples from populations having normal distributions. does the background color appear to have an effect on the variation of word recallscores?

n x s
red background 35 15.14 5.91
blue background 37 12.42 5.42

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Words were displayed on a computer screen with background colors of red and blue. results from score...