Suppose that you are asked to conduct a study to determine whether smaller class sizes lead to improved student performance of fourth graders.(i) If you could conduct any experiment you want, what would you do? Be specific.(ii) More realistically, suppose you can collect observational data on several thousand fourth graders in a given state. You can obtain the size of their fourth-grade class and a standardized test score taken at the end of fourth grade. Why might you expect a negative correlation betweenclass size and test score?(iii) Would a negative correlation necessarily show that smaller class sizes cause betterperformance? Explain.
Suppose that you are asked to conduct a study to determine whether smaller class sizes lead to improved student performance of fourth graders.(i) If you could conduct any experiment you want, what would you do? Be specific.(ii) More realistically, suppose you can collect observational data on several thousand fourth graders in a given state. You can obtain the size of their fourth-grade class and a standardized test score taken at the end of fourth grade. Why might you expect a negative correlation betweenclass size and test score?(iii) Would a negative correlation necessarily show that smaller class sizes cause betterperformance? Explain.
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter4: Writing Linear Equations
Section: Chapter Questions
Problem 14CR
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Suppose that you are asked to conduct a study to determine whether smaller class sizes lead to improved student performance of fourth graders.
(i) If you could conduct any experiment you want, what would you do? Be specific.
(ii) More realistically, suppose you can collect observational data on several thousand fourth graders in a given state. You can obtain the size of their fourth-grade class and a standardized test score taken at the end of fourth grade. Why might you expect a
class size and test score?
(iii) Would a negative correlation necessarily show that smaller class sizes cause better
performance? Explain.
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