Yates' correction

Yates' correction Quiz

Spec SE5 · AQA A-Level Further Maths: Quiz

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1. For which table is Yates' correction used?
- A. Any table with an expected frequency below 5
- B. Any table with more than two rows
- C. A $3\times3$ table
- D. A $2\times2$ table, with $\nu=1$
2. In a $2\times2$ table a cell has $|O-E|=4$ and $E=10$ . What is its contribution with Yates' correction?
- A. $1.6$
- B. $1.225$
- C. $2.025$
- D. $0.35$
3. Compared with the uncorrected statistic, the Yates-corrected statistic is:
- A. Smaller
- B. Larger
- C. The same
- D. Larger only when $O<E$
4. How is the correction applied?
- A. Adding $0.5$ to each $|O-E|$
- B. Dividing each $E$ by $2$
- C. Subtracting $0.5$ from each $|O-E|$ before squaring
- D. Subtracting $0.5$ from the final statistic
5. A corrected statistic is $3.2$ with $\nu=1$ . At $5\%$ (critical value $3.841$ ) what is the conclusion?
- A. Reject $H_0$ because $3.2<3.841$
- B. Reject $H_0$ because $3.2>3.841$
- C. Do not reject $H_0$ because $3.2>3.841$
- D. Do not reject $H_0$ because $3.2<3.841$