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Suppose the times to cook meat on a grill are normally distributed with a mean of 23 minutes and a standard deviation of 1.9 minutes.

What is the difference in times between grilled meat that has a z-score of 2 and another meat that has a z-score of −1?

 

2.85 min

4.7 min

5.7 min

11.4 min

 Mar 13, 2018
 #1
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+1

Answer ..... 5.7

 

reason being is that there is 3 s.d.'s between the two

 Mar 14, 2018

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