Which function represents a vertical stretch of an exponential function? f (x) = 3 (one-half) superscript x f (x) = one-half (3) superscript x f (x) = (3) superscript 2 x f (x) = 3 superscript (one-half x)

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)