The following was done in an experiment to determine if noise (from window-type airconditioners) in classrooms affects the performance of students in standardized intelligence tests: 120 students were randomly divided into eight groups of 15 students each, randomly assigned a classroom per group and given 90 minutes to complete the same test. Four of the rooms had noisy AC units and four didn't. The rooms are randomly interspersed. How many independent samples per treatment did this experiment have?

The following was done in an experiment to determine if noise (from window-type airconditioners) in classrooms affects the performance of students in standardized intelligence tests: 120 students were randomly divided into eight groups of 15 students each, randomly assigned a classroom per group and given 90 minutes to complete the same test. Four of the rooms had noisy AC units and four didn't. The rooms are randomly interspersed. How many independent samples per treatment did this experiment have?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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