## Business Statistics |

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### Contents

Introduction | 1 |

Statistics as a Scientific Method | 7 |

Functions Importance Limitations and Distrust of Statistics | 11 |

Limitations of Statistics | 15 |

Nonparametric Tests | 18 |

Chapters Statistical Investigation | 19 |

Execution of a Statistical Investigation | 22 |

Census and Sample Investigation | 23 |

Theory of Attributes | 435 |

Probability | 461 |

297 | 502 |

Probability Distribution of a Random Variable and Decision Analysis | 521 |

331 | 541 |

Theoretical Probability Distributions | 555 |

367 | 567 |

368 | 576 |

Random or Probability Sampling Methods | 28 |

Collection Editing and Analytical Tools of Data | 37 |

Editing of Data | 43 |

Classification and Tabulation of Data | 49 |

Bivanate and Multivariate | 60 |

Diagrammatic Presentation | 71 |

TwoDimensional Diagrams | 81 |

Graphic Presentation | 91 |

Measures of Central Tendency | 109 |

Measures of Dispersion | 193 |

Moments Skewness and Kurtosis | 241 |

Correlation | 265 |

Properties of Coefficient of Correlation | 271 |

Regression Analysis | 297 |

Index Numbers | 329 |

Analysis of Time Series | 387 |

Seasonal Variations | 414 |

Measurement of Cyclical Variations | 424 |

Sampling Distributions | 601 |

390 | 607 |

Statistical Inference | 619 |

442 | 631 |

Tests of Hypothesis Concerning Proportion | 646 |

Test of Hypothesis Concerning Parameters | 656 |

Uses of x2 Test | 662 |

Analysis of Variance | 683 |

Twoway Analysis of Variance | 689 |

Multiple Linear Regression | 695 |

Partial Correlation | 701 |

Statistical Quality Control | 709 |

Nonparametric Tests of Hypothesis | 727 |

Appendix | 741 |

Answers | 748 |

Answers | 753 |

### Common terms and phrases

analysis antilog arithmetic mean balls Bar Diagram base binomial binomial distribution Calculate central moments characteristics class intervals classification coefficient of correlation collected commodity Compute construction cumulative frequency curve denote determine economics equal estimate event Example expenditure figures Find the probability following data following table gives formula frequency distribution Further geometric mean graph grouped frequency distribution Hence Hint hypothesis income independent index numbers interquartile range known large number less level of significance limits marks obtained mean and standard mean deviation measure of dispersion median method mid-value mode monthly normal distribution number of observations percentage persons Poisson Poisson distribution population probability distribution production quartile random sample random variable ratio regression coefficients respectively shown Similarly simple random sample Solution standard deviation standard error statistics suitable sum of squares termed trend values unbiased units variance variations various wages weights width workers write