Table 1
Practising with z statistics
Element value
Population mean (μ)
Population standard deviation (σ)
z statistic
Area under the curve to the right of the z statistic
8.0
12.0
2.0
?
?
?
12.0
2.0
−3.0
?
16.0
14.0
4.0
?
?
?
14.0
4.0
1.5
?