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Quick questions on Chi-squared and non-parametric tests: goodness of fit, contingency tables and the sign test - OCR A-Level Further Maths A
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 are not combining small expected frequencies?Show answer
Cells with expected frequency below should be pooled before computing , or the test is unreliable.
What is q1?Show answer
State the chi-squared test statistic formula. [1 mark]
What is q2?Show answer
A contingency table has rows and columns. State the degrees of freedom. [1 mark]
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