plumiHypothesis testing: WJEC A‑Level Further Maths questions
Every WJEC A-Level Further Maths exam question on 5.3 Hypothesis testing, 2018–2025, with its mark scheme and examiner’s report.
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All 14 questions on Hypothesis testing, as a list
- Summer 2025, Unit 5, Q3 (18 marks): 3. Jeff, a psychology professor, is researching the effects of social media on teenagers. He sets up a trial, during which the participants are not allowed to u
- Summer 2025, Unit 5, Q5 (6 marks): 5. A farmer believes that giving antibiotics regularly to his cows reduces the amount of milk they produce. The amounts of milk produced per day are not assumed
- Summer 2024, Unit 5, Q2 (9 marks): 2. In country A, the median daily caffeine intake per student who drinks coffee is 120 mg. A university professor who oversees a foreign exchange programme beli
- Summer 2024, Unit 5, Q4 (11 marks): 4. The sports performance director at a university wishes to investigate whether there is a difference in the means of the specific gravities of blood of cyclis
- Summer 2024, Unit 5, Q6 (6 marks): 6. Alana is a PhD student researching language acquisition. She gives one group of randomly selected participants, Group A, 4 minutes to memorise 40 words that
- Summer 2023, Unit 5, Q1 (11 marks): 1. The average time it takes for a new kettle to boil, when full of water, is 305 seconds. An old kettle will take longer, on average, to boil. Alun suspects th
- Summer 2023, Unit 5, Q4 (12 marks): 4. Llŷr believes that he will have more social media followers by appearing on a certain Welsh television show. To investigate his belief, he collects data on 9
- Summer 2023, Unit 5, Q6 (7 marks): 6. A triathlon race organiser wishes to know whether competitors who are members of a triathlon club race more frequently than competitors who are not members o
- Summer 2022, Unit 5, Q3 (8 marks): 3. A statistics teacher wants to investigate whether students from the north of a county and students from the south of the same county feel similarly stressed
- Summer 2022, Unit 5, Q5 (13 marks): 5. A laboratory carrying out screening for a certain blood disorder claims that the average time taken for test results to be returned is 38 hours. A reporter f
- Summer 2022, Unit 5, Q6 (8 marks): 6. A zoologist knows that the median body length of adults in a species of fire-bellied toads is 4·2 cm. The zoologist thinks he has discovered a new subspecies
- Summer 2019, Unit 5, Q5 (11 marks): 5. To qualify as a music examiner, a trainee must listen to a series of performances by 8 randomly chosen students. An experienced examiner and the trainee both
- Summer 2019, Unit 5, Q6 (10 marks): 6. A manufacturer of batteries for electric cars claims that an hour of charge can power a certain model of car to travel for an average of 123 miles. An electr
- Summer 2019, Unit 5, Q7 (7 marks): 7. Nathan believes that shearers from Wales can shear more sheep, on average, in a given time than shearers from New Zealand. He takes a random sample of 8 shea
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