Question: Thank you so much for the help! 3. a) Find Zc when G = .75. In other words, nd Z75. Be sure to draw a
Thank you so much for the help!


3. a) Find Zc when G = .75. In other words, nd Z75. Be sure to draw a quality visual display. The Environmental Protection Agency (EPA) estimates for automobile models tested recently that the fuel economy has a mean of 25.2 miles per gallon, with a standard deviation of 5.8 miles per gallon. b) Use your Zc from above to determine the lowest and highest fuel economy for the middlemost 75% of the distribution. Use the z-score formula to do these calculations and then verify with your invnorm function on the calculator. lowest highest c) Use your results from part b, to write one complete sentence relating fuel economy to the probability of such fuel economy among all models recently tested
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