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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

Question 63

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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In a stratified random sample of students on a campus,sample members were asked to rate,on a scale of 1 (poor) to 5 (excellent) ,opportunities for improving the college infrastructure.The results are shown in the table below.
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: In a stratified random sample of students on a campus,sample members were asked to rate,on a scale of 1 (poor) to 5 (excellent) ,opportunities for improving the college infrastructure.The results are shown in the table below. -Find a 90% confidence interval for the mean rating given by all freshmen and sophomores on the campus. A) 3.98 ± 0.592 B) 3.98 ± 0.229 C) 3.98 ± 0.712 D) 3.98 ± 0.456
-Find a 90% confidence interval for the mean rating given by all freshmen and sophomores on the campus.


A) 3.98 ± 0.592
B) 3.98 ± 0.229
C) 3.98 ± 0.712
D) 3.98 ± 0.456

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