Many states mandate tests that have to be passed in order for the students to graduate with a high school diploma. A local school superintendent believes that after-school tutoring will improve the scores of students in his district on the state's graduation test. As a trial run, a tutor agrees to work with 15 students for a month. The superintendent ask the school board to implement this after-school tutoring program if there is evidence that student scores would increase by an average of more than 20 points. Create a 95% confident level to estimate the true score increase. 25.4 23.3 17.8 21.3 14.8 28.8 22.5 23.6 32.3 15.4 23.4 27.5 18.8 19.1 20.4 a. Confidence Interval b. Conclusion

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Many states mandate tests that have to be passed in
order for the students to graduate with a high school
diploma. A local school superintendent believes that
after-school tutoring will improve the scores of
students in his district on the state's graduation test.
As a trial run, a tutor agrees to work with 15 students
for a month. The superintendent ask the school board
to implement this after-school tutoring program if
there is evidence that student scores would increase
by an average of more than 20 points. Create a 95%
confident level to estimate the true score increase.
25.4 23.3 17.8 21.3 14.8 28.8 22.5 23.6 32.3
15.4 23.4 27.5 18.8 19.1 20.4
a. Confidence Interval
b. Conclusion
Transcribed Image Text:Many states mandate tests that have to be passed in order for the students to graduate with a high school diploma. A local school superintendent believes that after-school tutoring will improve the scores of students in his district on the state's graduation test. As a trial run, a tutor agrees to work with 15 students for a month. The superintendent ask the school board to implement this after-school tutoring program if there is evidence that student scores would increase by an average of more than 20 points. Create a 95% confident level to estimate the true score increase. 25.4 23.3 17.8 21.3 14.8 28.8 22.5 23.6 32.3 15.4 23.4 27.5 18.8 19.1 20.4 a. Confidence Interval b. Conclusion
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