Mathematics (AS & A Level) · Feb / March 2023 · Paper 62 · Question 4
9709
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The question as text
The number of accidents per 3-month period on a certain road has the distribution Po. In the past the value of , has been 5.7. Following some changes to the road, the council carries out a hypothesis test to determine whether the value of , has decreased. If there are fewer than 3 accidents in a randomly chosen 3-month period, the council will conclude that the value of , has decreased.
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4(a)[2]
4(b)[3]
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