Mathematics (AS & A Level) · Oct / Nov 2025 · Paper 62 · Question 3
9709
As printed in the paper
The question as text
The times, in minutes, taken by students to complete a test have mean n and standard deviation v. The times taken by a random sample of 100 students are noted and are used to calculate a 95% confidence interval for n.
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3(a)[3]
3(b)[1]
3(c)[4]
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