Use the Following Information for Following Questions

Multiple Choice

Use the following information for following questions .
The distribution of the number of hours of sleep people get per night is unimodal
and symmetric with a mean of 6 hours and a standard deviation of 1.5 hours.
-If James had a z-score of 1.2, how many hours did he sleep?

A) 7.5 hours
B) 7.8 hours
C) 8.0 hours
D) 8.2 hours