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Need a full and very clear explanation 2. A simple random sample of birth weights of 30 girls has a standard deviation of 829.5 hg.

Need a full and very clear explanation

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2. A simple random sample of birth weights of 30 girls has a standard deviation of 829.5 hg. Use a 0.01 significance level to test the claim that birth weights of girls have the same standard deviation as birth weights of boys, which is 660.2 hg

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