Essay
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In a stratified random sample of students on a small campus,sample members were asked to rate,on a scale of 1 (poor)to 5 (excellent),opportunities for extracurricular activities.The results are shown in the table below.
-Find a 95% confidence interval for the mean rating given by all freshmen and sophomores on the campus.
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= ...
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