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Emerg Med J 18:276-282 doi:10.1136/emj.18.4.276
  • An introduction to statistics

Article 8. An introduction to hypothesis testing. Non-parametric comparison of two groups—1

Table 18

The χ 2 values for each cell

No DNAR [O − E]2 / E DNAR [O − E]2 / E
Male [−2]2 / 213 = 0.019 [2]2 / 30 = 0.133
Female [2]2 / 201 = 0.02 [−2]2 / 30 = 0.133

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