Answer:
0.5
Step-by-step explanation:
Sample mean, x = 6 points greater than population mean ;
Population mean, m = 16
Standard deviation, s = 12
Zscore = (sample mean - population mean) / standard deviation
Zscore = (x - m) / s
x = 16 + 6 = 22
Zscore = (22 - 16) / 12
Zscore = 6 /12
Zscore = 0.5
