Scores on the math SAT are normally distributed. A sample of 20 SAT scores had standard deviation
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Scores on the math SAT are normally distributed. A sample of 20 SAT scores had standard deviation s = 87. Someone says that the scoring system for the SAT is designed so that the population standard deviation will be σ = 100. Do these data provide sufficient evidence to contradict this claim?
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s 2 7569 n 20 The null and alternate hypotheses are H 0 2 10000 H 1 2 10 000 Th...View the full answer
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