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Suppose that 5000 students who have taken the SAT exam once are randomly assigned to either take an SAT coaching course or not, with the following results in their improvements in SAT scores when they take the exam a second time: Coaching Group Control Group Sample Sample Size Sample Mean Standard Deviation 2500 2500 46.2 44.4 12.3 5.5 Which of the following is the appropriate null hypothesis? The population mean improvement in scores of the students that received coaching is the same as the population mean improvement in scores of the students that did not receive coaching The sample mean improvement in scores of the students that received coaching is the same as the sample mean improvement in scores of the students that did not receive coaching The population mean improvement in scores of the students that received coaching is not the same as the population mean improvement in scores of the students that did not receive coaching The scores of the students that received coaching is the same as the scores of the students that did not receive coaching The population proportion of the students that received coaching is the same as the population proportion of the students that did not receive coaching

Suppose that 5000 students who have taken the SAT exam once are randomly assigned to either take an SAT coaching course or not, with the following results in their improvements in SAT scores when they take the exam a second time: Coaching Group Control Group Sample Sample Size Sample Mean Standard Deviation 2500 2500 46.2 44.4 12.3 5.5 Which of the following is the appropriate null hypothesis? The population mean improvement in scores of the students that received coaching is the same as the population mean improvement in scores of the students that did not receive coaching The sample mean improvement in scores of the students that received coaching is the same as the sample mean improvement in scores of the students that did not receive coaching The population mean improvement in scores of the students that received coaching is not the same as the population mean improvement in scores of the students that did not receive coaching The scores of the students that received coaching is the same as the scores of the students that did not receive coaching The population proportion of the students that received coaching is the same as the population proportion of the students that did not receive coaching

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose that 5000 students who have taken the SAT exam once are randomly assigned to either take an SAT coaching course or not, with the following results in their improvements in SAT scores when they take the exam a second time: Coaching Group Control Group Sample Sample Size Sample Mean Standard Deviation 2500 2500 46.2 44.4 12.3 5.5
Transcribed Image Text:Suppose that 5000 students who have taken the SAT exam once are randomly assigned to either take an SAT coaching course or not, with the following results in their improvements in SAT scores when they take the exam a second time: Coaching Group Control Group Sample Sample Size Sample Mean Standard Deviation 2500 2500 46.2 44.4 12.3 5.5
Which of the following is the appropriate null hypothesis? The population mean improvement in scores of the students that received coaching is the same as the population mean improvement in scores of the students that did not receive coaching The sample mean improvement in scores of the students that received coaching is the same as the sample mean improvement in scores of the students that did not receive coaching The population mean improvement in scores of the students that received coaching is not the same as the population mean improvement in scores of the students that did not receive coaching The scores of the students that received coaching is the same as the scores of the students that did not receive coaching The population proportion of the students that received coaching is the same as the population proportion of the students that did not receive coaching
Transcribed Image Text:Which of the following is the appropriate null hypothesis? The population mean improvement in scores of the students that received coaching is the same as the population mean improvement in scores of the students that did not receive coaching The sample mean improvement in scores of the students that received coaching is the same as the sample mean improvement in scores of the students that did not receive coaching The population mean improvement in scores of the students that received coaching is not the same as the population mean improvement in scores of the students that did not receive coaching The scores of the students that received coaching is the same as the scores of the students that did not receive coaching The population proportion of the students that received coaching is the same as the population proportion of the students that did not receive coaching
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