Tap a takes 6 min to fill a tank and tap b takes 9 min to fill the same tank. pipe c can empty the tank in 15 min. how long will it take to fill up the tank if the pipe is in use when both taps are turned on?

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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)