An equation was used to predict possible weights of puppies at 6 months of age. The actual weights of the puppies are also listed. Actual weight (ounces)91516202026 Predicted weight (ounces)91215182124 The sum of the residuals is . 0 7 9 26

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. 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 $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?