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This is observation from previous years about the impact of students working while they are enrolled...

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Basic Math

This is observation from previous years about the impact ofstudents working while they are enrolled in classes, due tostudents too much work, they are spending less time on theirclasses. First, the observer need to find out, on average, how manyhours a week students are working. They know from previous studiesthat the standard deviation of this variable is about 5 hours. Asurvey of 200 students provides a sample mean of 7.10 hours worked.What is a 95% confidence interval based on this sample?

((NO HANDWRITING PLEASE))

Answer & Explanation Solved by verified expert
4.5 Ratings (950 Votes)
Solution Given that 710 5n 200At 95    See Answer
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