Statistical Methods: A Problem-solving Approach |
Contents
THE MEDIAN AND PERCENTILES | 44 |
Populations Samples and sampling Random | 70 |
THE MEAN AND THE STANDARD | 80 |
Copyright | |
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Common terms and phrases
analysis of variance approximately average binomial centile ranks Chapter chi-square test class interval computed conclude confidence interval confidence limits Control group critical region degrees of freedom determine directional hypothesis divided drug equal error Example expected frequencies Experimental group formula frequency distribution given gives graph indicate interquartile range investigator larger maze mean and standard mean IQ mean number mean score measures median midpoint n₂ neurotics normal curve normal distribution null hypothesis NUMBER SQUARE SQUARE observations one-tailed test outcomes P₁ P₂ parameter patients performance popu population mean possible predicted problem procedure random sample randomly range reject the hypothesis relationship sample means sample result sample values sampling distribution scatter diagram schizophrenics selected shown significance level skewed SQUARE SQUARE ROOT standard deviation STEP subjects sum of squares test the hypothesis tion two-tailed test variable X₁ zero μ₁