Human body temperatures are normally distributed with a mean of 98.2 o F and a standard deviation of 0.62 o F. Find the temperature that separates...

1. Human body temperatures are normally distributed with a mean of 98.2oF and a standard deviation of 0.62o F. 

Find the temperature that separates the top 7% from the bottom 93%.

a. 97.28F

b. 98.40F

c. 99.12F

d. 98.78F

1. The weights of certain machine components are normally distributed with a mean of 8.04 g and a standard deviation of 0.08 g.

Find the two weights that separate the top 3% and the bottom 3%. (These weights could serve as limits used to identify which components should be rejected)

a. 8.03 g and 8.05 g

b. 7.89 g and 8.19 g

c. 7.87 g and 8.26 g

d. 8.00 g and 8.08 g