## Statistical methods: a problem-solving approach |

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### Contents

THE MEDIAN AND PERCENTILES | 44 |

Populations Samples and sampling Random | 70 |

THE MEAN AND THE STANDARD | 80 |

Copyright | |

10 other sections not shown

### 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 hypothesis is rejected indicate interquartile range investigator larger maze mean and standard mean IQ mean number mean score measures median midpoint neurotics normal distribution null hypothesis Number Square Square observations one-tailed test outcomes parameter patients performance popu population mean population variance 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 statistical test step sum of squares test the hypothesis tion two-tailed test variable zero