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ScotlandApplications of MathematicsQuick questions
Statistics and Probability
Quick questions on Hypothesis testing and confidence intervals - SQA Higher Applications of Maths
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
A test gives a p-value of at the significance level. State the conclusion. [2 marks]
What is q2?Show answer
State whether a t-test or a z-test is used when the population standard deviation is unknown. [1 mark]
What is q3?Show answer
A confidence interval for a mean is . What happens to its width at the level? [2 marks]
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