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Mathematics 22 Online
OpenStudy (anonymous):

1. A researcher is interested in whether students who attend private high schools have higher average SAT Scores than students in the general population. A random sample of 90 students at a private high school is tested and and a mean SAT score of 1030 is obtained. The average score for public high school student is 1000 (σ= 200). Is this a one- or two tailed test? What are H0 and Ha for this study?

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