G (c) The time delay (in milliseconds) until webpage displays on your tablet is T = X1 + X2, where X1 is the time to fetch the page from the web server, and X2 is the time render the page on your screen. If X1 is exponential (1 = 0.2) and X2 is continuous uniform (0, 12), and X1 and X2 are uncorrelated, what is Var[T]? (d) U is a continuous uniform (b, b) random variable such that E⇥ U2 ⇤ = 36. What is P[U < 1]? 2 v

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)