Multiple Choice
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The faculty advisor at a local business school is interested in determining the monthly expenditures on stationeries for students.The advisor samples some students from each class and computes the sample mean and standard deviation for each class.
-Find a 98% confidence interval for the total expenditures.
A) 13,128.01 ± 126.71
B) 13,128.01 ± 581.23
C) 13,128.01 ± 342.58
D) 13,128.01 ± 665.49
Correct Answer:

Verified
Correct Answer:
Verified
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Q4: For a sample of 145 observations from
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Q9: An apartment complex manager randomly selects 10
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Q11: A stratified sampling technique is used when