THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A sales representative has 425 accounts.From a random sample of 60 of these accounts,she found that the average yearly order was $1,250 with a standard deviation of $70.She also found that 28 out of 60 in the sample have placed an order in the last four weeks.
-Find a 90% confidence interval for the total amount of sales for the sales representative.

A) $531,250 ± 5,861.93
B) $87,500 ± $3,651.51
C) $75,000 ± $2,840.11
D) $29,750 ± $4,115.33