But an observed proportion in favour of males would also have led us to suspect the null hypothesis did not hold. We should therefore also calculate the chance of getting an observed difference of at least 7%, in either direction. This is known as a two-tailed P-value, corresponding to a two-sided test. This total tail area turns out to be 0.89, and since this value is near one it indicates that the observed value is near the centre of the null distribution.
