Class A has 26 pupils and class B has 14 pupils. Both classes sit the same maths test. The mean score for class A is 66. The mean score for both classes is 66. What is the mean score in the maths test for class B?

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)