Biology teacher claims that average
A biology teacher claims that average on her last test was 74. The scores of 12 students are as follows:
78, 82, 90, 65, 81, 66, 72, 55, 58, 70, 74, 85.
At the 0.01 level of significance, is her claim correct?
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A score of 85 is earned on a test in which mean=100 and S=15. An equivalent score on a scale where mean=50 and S=10 is?
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