- #1
ChrisBlack
- 10
- 0
Homework Statement
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.
Homework Equations
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