neip The results of a study of 270 students who paid a private tutor to help them improve their scores on a standardized test are shown below. The changes in both the Mathematics and Verbal scores for these students are reproduced in the table. Complete parts a through c below Test score improvements Mean change in score Standard deviation of score changes Math Verbal 7 44 18 65 a. Construct and interpret a 95% confidence interval for the population mean change in the Mathematics score for students who pay a private tutor (Round to three decimal places as needed.) Enter your answer in the edit fields and then click Check Answer Check Answer clear Al 5 parts remaining x A Tns course (MAT-T37TIS based on McCiave: 3tatistics TorbUsiness ana EconomiCS, 13e earch

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neip
The results of a study of 270 students who paid a private tutor to help them improve their scores on a standardized test are shown below. The changes in both the
Mathematics and Verbal scores for these students are reproduced in the table. Complete parts a through c below
Test score improvements
Mean change in score
Standard deviation of score changes
Math
Verbal
7
44
18
65
a. Construct and interpret a 95% confidence interval for the population mean change in the Mathematics score for students who pay a private tutor
(Round to three decimal places as needed.)
Enter your answer in the edit fields and then click Check Answer
Check Answer
clear Al
5
parts
remaining
x
A
Tns course (MAT-T37TIS based on McCiave: 3tatistics TorbUsiness ana EconomiCS, 13e
earch

Image Transcription

neip The results of a study of 270 students who paid a private tutor to help them improve their scores on a standardized test are shown below. The changes in both the Mathematics and Verbal scores for these students are reproduced in the table. Complete parts a through c below Test score improvements Mean change in score Standard deviation of score changes Math Verbal 7 44 18 65 a. Construct and interpret a 95% confidence interval for the population mean change in the Mathematics score for students who pay a private tutor (Round to three decimal places as needed.) Enter your answer in the edit fields and then click Check Answer Check Answer clear Al 5 parts remaining x A Tns course (MAT-T37TIS based on McCiave: 3tatistics TorbUsiness ana EconomiCS, 13e earch

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