An agricultural scientist finds that the difference in the mean grain yield of wheat between crops treated with a new bio-stimulant and those treated with a standard fertiliser is statistically significant at p<0.01p < 0.01p<0.01.
Explain what is meant by 'significant at p<0.01p < 0.01p<0.01' in the context of this study.
121 exam-style questions on AQA A Level Psychology Inferential testing (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.