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In 1990, the average math SAT score for students at one school was 475. Five years later, a teacher ...

Coltonht

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In 1990, the average math SAT score for students at one school was 475. Five years later, a teacher ...

In 1990, the average math SAT score for students at one school was 475. Five years later, a teacher wants to perform a hypothesis test to determine whether the average math SAT score of students at the school has changed. He picks a random sample of 40 students and obtains their the mean math SAT score, which is 472. Test whether the claim that the mean math SAT score for all students at the school has changed from the previous mean of 475 is supported or not supported. Assume that the population standard deviation is 73.

▸ not supported

▸ supported

Textbook

Statistical Reasoning for Everyday Life

Edition: 5^th

Authors: Bennett, Briggs, Triola

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I appreciate what you did here, answered it right Smiling Face with Open Mouth

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Just got PERFECT on my quiz

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Thank you, thank you, thank you!

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