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Babies A sample of 25 one year old girls had a mean weight of 24...

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Babies A sample of 25 one year old girls had a mean weight of 24 1 pounds with a standard deviation of 4 3 pounds Assume that the population of weights is normally distributed A pediatrician claims that the standard deviation of the weights of one year old girls is greater than 3 pounds Do the data provide convincing evidence that the pediatrician s claim is true Use the a 0 05 level of significance Part 0 5 Part 1 of 5 State the appropriate null and alternate hypotheses H Choose one H 0 Choose one This hypothesis test is a Choose one test X 5 0

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