(Please type out. I struggle to readhandwriting.)
2. Collette is self-employed and sells cookware at home parties.She wants to estimate the average amount a client spends at eachparty. A random sample of 35 receipts gave a mean of x? = $34.70with standard deviation s = $4.85.
(a) Find a 90% confidence interval for the average amount spentby all clients.
(b) What conditions are necessary for your calculations?
(c) For a party with 35 clients, use part (a) to estimate arange of dollar values for Collette’s total sales at thatparty.
