Mathematics (AS & A Level) · Oct / Nov 2024 · Paper 63 · Question 7
9709
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The question as text
The number of accidents per year on a certain road has the distribution Po(m). In the past the value of m was 3.3 . Recently, a new speed limit was imposed and the council wishes to test whether the value of m has decreased. The council notes the total number, X, of accidents during two randomly chosen years after the speed limit was introduced and it carries out a test at the 5% significance level.
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7(a)[4]
7(b)[3]
7(c)[3]
7(d)[4]
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