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3 a study was conducted to determine whether

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Unformatted text preview: the students in the two schools based on these samples. 3. A study was conducted to determine whether remediation in basic mathematics enabled students to be more successful in an elementary statistics course. Samples of final exam scores were taken from students who had remediation and from students who did not. Here are the results of the study: Sample size Mean Exam Grade Std Dev for Exam Remedial 100 83.0 2.76 Non-remedial 40 76.5 4.11 Test, at the 5% level, whether the remediation helped the students to be more successful....
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