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Let µi =the true mean score for all students like these receiving the intervention and u2 = the true mean score for all students like these not receiving the intervention. Which of the following is correct for conducting a significance test of li – µ2? 1. Ho: µ1 – 12 < 0 II. Ha: µ1 – µ2 > 0 III. Both the Random and Normal/Large Counts conditions are met. Ol and III O1, II, and II I only Il and III

Let µi =the true mean score for all students like these receiving the intervention and u2 = the true mean score for all students like these not receiving the intervention. Which of the following is correct for conducting a significance test of li – µ2? 1. Ho: µ1 – 12 < 0 II. Ha: µ1 – µ2 > 0 III. Both the Random and Normal/Large Counts conditions are met. Ol and III O1, II, and II I only Il and III

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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43 students who struggle in math classes at a large university were selected to participate in a study. The university is hoping that an intervention program will help these students. To determine if the intervention improves assessment scores, 22 students were randomly assigned to an intervention to address their struggles while the rest received no intervention. Boxplots of the sample data appear below: 70 75 80 Assessment Scores Let li =the true mean score for all students like these receiving the intervention and u2 = the true mean score for all students like these not receiving the intervention. Which of the following is correct for conducting a significance test of l1 – µ2? 1. Ho: µ1 – µ2 < 0 II. Ha: H1 – µ2> 0 II. Both the Random and Normal/Large Counts conditions are met. OI and III O1, II, and III O I only O Il and II No Intervention Intervention
Transcribed Image Text:43 students who struggle in math classes at a large university were selected to participate in a study. The university is hoping that an intervention program will help these students. To determine if the intervention improves assessment scores, 22 students were randomly assigned to an intervention to address their struggles while the rest received no intervention. Boxplots of the sample data appear below: 70 75 80 Assessment Scores Let li =the true mean score for all students like these receiving the intervention and u2 = the true mean score for all students like these not receiving the intervention. Which of the following is correct for conducting a significance test of l1 – µ2? 1. Ho: µ1 – µ2 < 0 II. Ha: H1 – µ2> 0 II. Both the Random and Normal/Large Counts conditions are met. OI and III O1, II, and III O I only O Il and II No Intervention Intervention
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