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mdagenh1 mdagenh1
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4 years ago
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 60 students and obtains their mean math SAT score, which is 469. Test whether the claim that the average math SAT score at the school has dropped from 475 is supported or not supported. Assume that  

▸ not supported

▸ supported
Textbook 
Statistical Reasoning for Everyday Life

Statistical Reasoning for Everyday Life


Edition: 5th
Authors:
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jeromet1jeromet1
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Posts: 386
4 years ago
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mdagenh1 Author
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4 years ago
this is exactly what I needed
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Yesterday
This helped my grade so much Perfect
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2 hours ago
Thank you, thank you, thank you!
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