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Adding the Percent of English Speakers (PctEL)to the Student Teacher

Question 44

Essay

Adding the Percent of English Speakers (PctEL)to the Student Teacher Ratio (STR)in your textbook reduced the coefficient for STR from 2.28 to 1.10 with a standard error of 0.43. Construct a 90% and 99% confidence interval to test the hypothesis that the coefficient of STR is 2.28.

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The 90% confidence interval is...

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