Give the z-scores for the teacher that are 30 years old and 63 years old (round to two decimal place). Is significant why or why not? Which age is more extreme? Mean= 50.4 s=9.8 30-50.4÷9.8 z=-2.08...

Give the z-scores for the teacher that are 30 years old and 63 years old (round to two decimal place). Is significant why or why not? Which age is more extreme?

Mean= 50.4 s=9.8

30-50.4÷9.8 z=-2.08     63-50.4÷9.8                                                     z=1.29

is this right and Is either significant? Why or why not? Which is more extreme?