Answered You can hire a professional tutor to get the answer.

QUESTION

A random sample of 91 customers, who visited a department store, spent an average of $ 74 at this store. Suppose the standard deviation of...

= $ 22. The 98% confidence interval for the population mean (rounded to two decimal places) is:

The lower limit is $

The upper limit is $

Show more
LEARN MORE EFFECTIVELY AND GET BETTER GRADES!
Ask a Question