Cambridge A Level Mathematics 9709 — 2014 Oct/Nov Paper 7 · Variant 3
9709/73/O/N/14 · 1 question · 50 marks · ≈56 min
The question paper and its mark scheme, free to read here and free to download. This is Cambridge’s own paper, exactly as it was sat.
Question paper4 pages
Mark scheme6 pages
Answers below. Sit the paper first if you are practising.
Questions as text
Q1 · A researcher wishes to investigate whether the mean height of a certain type of plant in…
1 A researcher wishes to investigate whether the mean height of a certain type of plant in one region is different from the mean height of this type of plant everywhere else. He takes a large random sample of plants from the region and finds the sample mean. He calculates the value of the test statistic, Ï, and finds that Ï = 1.91. (i) Explain briefly why the researcher should use a two-tail test. [1] (ii) Carry out the test at the 4% significance level. [3]
Mark scheme: 2 (i) 1 2 c = 1 M1 Area of triangle = 1 or integral of kx with limits 2 0 and c and equated to 1
What was in this paper
The subtopics covered by these 1 questions, and how many questions each got. Open one in a new tab to see every Cambridge question on it.
What you needed in this session
Cambridge’s own grade thresholds for 2014 Oct/Nov, Paper 7 · Variant 3. A higher threshold means an easier paper — the bar moves with how the cohort did.