The average preferred temperature (in F) for the class is = 71 degrees ( = 7.5).

The average preferred temperature for a random sample of n= 10 is M = 66 degrees

1. What proportion of samples would have means lower than this sample mean?

a. Find the z-score for our sample mean (Z_M)

b. Is this sample mean considered to be extremeor fairly typical of the population?

Draw a vertical line through the graph corresponding to the Z_M and determine the section of the graph corresponding to the proportion you need to find.

= 71