You need to buy 10lb of rice. a 2lb bag costs $1.29. a 10lb bag costs $6.99. you want to buy a 10lb bag. your friend thinks buying a five 2lb bag is a better deal because the unit rate is lower. is your friend correct?

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)