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What are the null and alternative? hypotheses

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Reference no: EM132413731

Problem: 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 recall? scores?

Red Background n:35 x:15.79 s:5.93

Blue Background n:36 x:12.35 s:5.43

What are the null and alternative? hypotheses?

Identify the test statistic.

The? P-value is

What is the conclusion for this hypothesis? test?

Reference no: EM132413731

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