Mathematics (AS & A Level) · May / June 2016 · Paper 73 · Question 4
9709
As printed in the paper
The question as text
The number of sightings of a golden eagle at a certain location has a Poisson distribution with mean 2.5 per week. Drilling for oil is started nearby. A naturalist wishes to test at the 5% significance level whether there are fewer sightings since the drilling began. He notes that during the following 3 weeks there are 2 sightings.
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Show the answer and mark scheme
4(i)[5]
4(ii)[1]
4(iii)[1]
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