Primary school absenteeism. Absence from school can lead to lower educational achievement and poor health. An article published in the BMC Public Health (Vol. 21, 2021) explored absenteeism in primary schools in the West-Brabant region of the Netherlands by studying the differing reasons of absence, including sickness. It reported that the percentage of problematic absence among primary students was 48%. Specify the null and alternative hypotheses for testing this belief. Be sure to identify the parameter of interest.