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Introduction to Econometrics 3rd Edition by James Stock, Mark Watson
Edition 3ISBN: 978-9352863501Introduction to Econometrics 3rd Edition by James Stock, Mark Watson
Edition 3ISBN: 978-9352863501 Exercise 30
Data on fifth-grade test scores (reading and mathematics) for 420 school districts in California yield
= 646.2 and standard deviation s Y = 19.5.
a. Construct a 95% confidence interval for the mean test score in the population.
b. When the districts were divided into districts with small classes ( 20 students per teacher) and large classes ( 20 students per teacher), the following results were found:
Is there statistically significant evidence that the districts with smaller classes have higher average test scores Explain.
= 646.2 and standard deviation s Y = 19.5.a. Construct a 95% confidence interval for the mean test score in the population.
b. When the districts were divided into districts with small classes ( 20 students per teacher) and large classes ( 20 students per teacher), the following results were found:
Is there statistically significant evidence that the districts with smaller classes have higher average test scores Explain.Explanation
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Introduction to Econometrics 3rd Edition by James Stock, Mark Watson
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