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

jbouyer  Mar 13, 2018

1+0 Answers


Answer ..... 5.7


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

Guest Mar 14, 2018

5 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details