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OC A school system has assigned several hundred "chronic and severe underachievers" to an altema- tive ecucational experience. To assess the program, a random sample of 35 has been seected for com- parison with all stucents in the system. In terms of GPA, did the program work? Systemwide GPA Program GPA u- 2.47 X- 2.55 S-0.70 N= 35 In terms of absenteeism (number of days missed per year), what can be said about the success of the program? Systemwide Program X- 4.78 S- 1.11 N- 35 4- 6.137 tandurdizerd in

OC A school system has assigned several hundred "chronic and severe underachievers" to an altema- tive ecucational experience. To assess the program, a random sample of 35 has been seected for com- parison with all stucents in the system. In terms of GPA, did the program work? Systemwide GPA Program GPA u- 2.47 X- 2.55 S-0.70 N= 35 In terms of absenteeism (number of days missed per year), what can be said about the success of the program? Systemwide Program X- 4.78 S- 1.11 N- 35 4- 6.137 tandurdizerd in

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
Section10.5: Comparing Sets Of Data
Problem 13PPS
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8.8 SOC A school system has assigned several hundred "chronic and severe underachievers" to an altema- tive echucational experience. To assess the program, a random sample of 35 has been selected for com- parison with all studkents in the system. a. In terms of GPA, did the program work? Systemwide GPA Program GPA X = 2.55 s= 0.70 N= 35 4 = 2.47 b. In terms of absenteeism (number of days missed per year), what can be said about the success of the program? Systemwide Program u - 6.137 X= 4.78 s= 1.11 N= 35 c. In terms of standardized test scores in math and reading, was the program a success? Math Test- Math Test- Systemwide Program H = 103 X = 106 s= 2.0 N- 35 Reading Test- Systemwide Reading Test- Program X = 113 s= 2.0 N= 35 A = 110 (HINT: Note the wording of the research ques- tions. Is a one-tailed test justified? Is the program a success if the students in the program are no different from students systemwide? What if the program students were performing at lower lev- els? If a one-tailed test is used, what form should tbe research bypotbesis take? Where will the criti- cal region begin?)
Transcribed Image Text:8.8 SOC A school system has assigned several hundred "chronic and severe underachievers" to an altema- tive echucational experience. To assess the program, a random sample of 35 has been selected for com- parison with all studkents in the system. a. In terms of GPA, did the program work? Systemwide GPA Program GPA X = 2.55 s= 0.70 N= 35 4 = 2.47 b. In terms of absenteeism (number of days missed per year), what can be said about the success of the program? Systemwide Program u - 6.137 X= 4.78 s= 1.11 N= 35 c. In terms of standardized test scores in math and reading, was the program a success? Math Test- Math Test- Systemwide Program H = 103 X = 106 s= 2.0 N- 35 Reading Test- Systemwide Reading Test- Program X = 113 s= 2.0 N= 35 A = 110 (HINT: Note the wording of the research ques- tions. Is a one-tailed test justified? Is the program a success if the students in the program are no different from students systemwide? What if the program students were performing at lower lev- els? If a one-tailed test is used, what form should tbe research bypotbesis take? Where will the criti- cal region begin?)
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