Question

The expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $78 and a standard deviation of $16.

Round all z values to 3 decimal places, and round all other answers to 2 decimal places.

(a) If the management's assumptions are correct, what percent of customers will spend $65 or less?

Enter the zz-value for your calculation here:  

Enter the percent of customers that will spend $65 or less here:  

(b) If the management wants to give free gifts to at most 9% of the customers, what should the amount be above which a customer would receive a free gift?

Enter the zz-value for your calculation here:  

Enter the amount, aboveabove which a customer would receive a free gift here:

Answer 1