Review Quiz: Final Exam Mastery Quiz Close Score: 0 of 1 pt 26of38 Test Score: 2

Question

Review Quiz: Final Exam Mastery Quiz Close Score: 0 of 1 pt 26of38 Test Score: 2.63%, 1 of 38 pts Instructor-created question A survey indicates that shoppers will stay in a store for an average of 45 minutos with a standard deviation of 10 minutos The lengths of tme are normaly distibuted What is the probability that a shopper wil spend more than 60 minules in a store? The probability that a shopper wll spend more than 60 minudes in a store is 0067 (Type a probability rounded to 3 decimal places) Question is complete. Tap on the red indicators to see incorrect answers Type here to search

Explanation / Answer

Given: = 45 = 10

X > 60

=> Z > (60 - 45) / 10

=> Z > 15 / 10

=> Z > 1.5

Using z tables, the probability is

0.0668 or 0.067.

Strangely, even though the answer was right, it is being shown as incorrect!

Try entering 0.066 if possible.

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