(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Janet sells cookware at home parties, she wants to estimate the average amount a client spends at each party. A random sample of 35 receipts gave a mean of X bar = $34.70 with standard deviation s = %4.85.

a) find a 90% confidence interval for the average amount spent by all clients.

b) for a party with 35 clients, use part (a) to estimate a range of dollar values for Janet's total sales at that party.

2. Relevant equations

3. The attempt at a solution

I found the 90% confidence interval with no problem and got 33.32 < X bar < 36.09 but I don't understand what part (b) is asking, it seems to me that it is asking the same exact thing that (a) was

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# Homework Help: Confidence Interval

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