Luka wants to carry out a survey of students at his school. He obtains a list of all 280 students. Test, at the $$\(10 \%\)$$ level of significance, whether the two-digit numbers generated by Luka follow a uniform distribution. You should state the hypotheses, the degrees of freedom and the critical value used for this test. (8) There are 70 students in Year 12 at his school.

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