Problem 1: A math teacher is concerned about grade inflation in the other departments. He randomly selects 200 students in his large high school and examines their transcripts of last semester's grade. Among them 44 had an A in math, but 60 had an A in another core subject. a) Do we have some evidence to suggest that grades are inflated in subjects other than math? Is this statistically significant? b) Perform a hypothesis test at alpha level: a = 0.05. Be sure to check the conditions.
Problem 1: A math teacher is concerned about grade inflation in the other departments. He randomly selects 200 students in his large high school and examines their transcripts of last semester's grade. Among them 44 had an A in math, but 60 had an A in another core subject. a) Do we have some evidence to suggest that grades are inflated in subjects other than math? Is this statistically significant? b) Perform a hypothesis test at alpha level: a = 0.05. Be sure to check the conditions.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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