Mathematics (AS & A Level) · Oct / Nov 2019 · Paper 72 · Question 2
9709
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The question as text
The heights of a certain species of animal have been found to have mean 65.2 cm and standard deviation 7.1 cm. A researcher suspects that animals of this species in a certain region are shorter on average than elsewhere. She takes a large random sample of n animals of this species from this region and finds that their mean height is 63.2 cm. She then carries out an appropriate hypothesis test.
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2(i)[7]
2(ii)[1]
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