Corrections

In this experiment we measured the weight, the height and the BMI of boys and girls.

Therefore we have two independent groups.

In order to analyse statistically these parameter we have chosen a t-Test for independent samples.

The P two-tailed value in the analysis of weight was X.

In the analysis of height was X.

Finally, in BMI we obtained that the P two-tailed value was Y.

When P is Z it indicates that there is any significant difference between the variances of the two samples.

In conclusion, in the analysis of weight and height there is any significant difference, but in the analysis of BMI there is a significant difference between the variances of the two samples because the P value was over Z.