Mathematics (AS & A Level) · Feb / March 2017 · Paper 72 · Question 2
9709
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The question as text
Karim has noted the lifespans, in weeks, of a large random sample of certain insects. He carries out a test, at the 1% significance level, for the population mean, -. Karim’s null hypothesis is - = 6.4.
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2(i)[1]
2(ii)[2]
2(iii)[1]
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