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IQ scores: Scores on an IQ test are normally distributed. A sample of 25 IQ scores had standard deviation s = 8. The developer of

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IQ scores: Scores on an IQ test are normally distributed. A sample of 25 IQ scores had standard deviation s = 8. The developer of the test claims that the population standard deviation is greater than o = 15. Do these data provide sufficient evidence to support this claim? Use the a = 0.05 level of significance. Part: 0 / 5 Part 1 of 5 State the appropriate null and alternate hypotheses. Ho: G (Choose one) H : (Choose one) This hypothesis test is a (Choose one) test

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