Itllions will be contained between 25 and 475 calories 100 and 400 calories. The

Question

Itllions will be contained between 25 and 475 calories 100 and 400 calories. The following information applies to questions 15. 16. and 17 a and 17b The saturated fat content in McDonald's breakfast foods follows an approximate normal distribution with mean 9 grams and standard deviation 2.5 grams. 15. (10 points)A Bacon, Egg, and Cheese McGriddles contains 7 grams of saturated fat. Based on the distribution above, what is the probability that a McDonald's breakfast food will have 7 grams of saturated fat or more? Based on the distribution above, what must the number of grams of saturated fat for a McDonald's breakfast food be to fall in the bottom 3.5% of the distribution? 16. (10 points)An English McMuffin has the smallest amount of saturated fat among McDonald's breakfast foods.

Explanation / Answer

15) Mean = 9

SD = 2.5

P(X > 7)

z = (7 - 9)/2.5

z = - 0.8

P(z > - 0.8) = 0.7881

16) z score for bottom 3.5% = - 1.81

(x - 9)/2.5 = - 1.81

x = 4.475

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