A sample of 400 people getting a tax refund showed the mean to be $900 and standard deviation to be
Question:
A sample of 400 people getting a tax refund showed the mean to be $900 and standard deviation to be $200.
a) Design a 99 percent confidence interval.
b) How large a sample do you need if you want the error to be no more than $10?
Price: $2.99
Solution: The solution consists of 3 pages
Deliverable: Word Document
Deliverable: Word Document
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