plumiAnalysis of variance: Edexcel A‑Level Statistics questions
Every Edexcel A-Level Statistics exam question on H.20 Analysis of variance, 2018–2025, with its mark scheme and examiner’s report.
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All 9 questions on Analysis of variance, as a list
- June 2025, Statistical Inference, Q6 (16 marks): 6 Restaurants often display their menus outside. Diners therefore often form an impression of the restaurant before setting foot on the premises. An investigati
- June 2024, Statistics in Practice, Q2 (15 marks): 2 Cats that have diabetes are treated with insulin. It is believed that insulin might cause a growth disease in cats. Cats, that are being treated with insulin,
- June 2023, Statistical Inference, Q5 (18 marks): 5 In March 2011, there was an accident at the Fukushima Nuclear Power Plant in Japan that caused a massive release of radioactive materials into the environment
- June 2023, Statistics in Practice, Q3 (20 marks): 3 Upulani works for a lawnmower manufacturing company. The company is considering several new batteries to use in a cordless lawnmower. Upulani measures the lif
- June 2022, Statistical Inference, Q4 (15 marks): 4 A farmer wanted to maximise the spring oat yield, tonnes per hectare, that she could get from a field. The farmer was able to control two factors • variety of
- November 2021, Statistics in Practice, Q5 (16 marks): 5 Wollemia is an endangered Australian tree. Catherine is studying the effect of light level on the chlorophyll concentration in the leaves of wollemia seedling
- November 2020, Statistical Inference, Q7 (17 marks): 7 Daniel, a car fleet manager, has collected data about the durability of four brands of car tyre. He recorded the distance, X thousand miles, travelled by each
- June 2019, Statistical Inference, Q7 (19 marks): 7 An experiment is conducted to compare the effects of 3 energy drinks, A, B and C, on endurance. A sample of 6 volunteer subjects from a local gym are instruct
- June 2019, Statistics in Practice, Q7 (17 marks): 7 A group of researchers found that skin healing cells called fibroblasts are more active during the day than during the night. The researchers then collected d
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