Table 6. Hypotheses for the questionnaire item How did you get better at programming?

$H_0$	$H_1$	Probability of error	The null hypothesis
Among boys’ and girls’ responses to the question ”How have they improved in programming?” there are no statistically significant differences.	Among boys’ and girls’ responses to the question ”How have they improved in programming?” there are significant differences.	0.94%	Reject
Among the responses of primary and secondary school students to the question ”How have they improved in programming?” there are no statistically significant differences.	Among the responses of primary and secondary school students to the question ”How have they improved in programming?” there are significant differences.	0.03%	Reject