
 Values  
Countries  Test Elements  FIAS/TA  FIHT/TA 
Mozambique  Mean  0.06  0.01 
Standard deviation  0.08  0.02  
N  45  16  
Portugal  Mean  0.11  0.006 
Standard deviation  0.16  0.012  
N  75  59  
Equality of Means between Mozambique and Portugal  
FIAS/TA  Twotailed ttest  t = −1.93  P value: 0.06 
FIHT/TA  Twotailed ttest  t = 1.052  P value: 0.30 