An Introduction to Statistical Methods: A Textbook for College Students, a Manual for Statisticians and Business Executives |
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Page vii
... application although the illustrations , for the most part , are drawn from economic and business fields . The order of treatment is the same as that followed in the planning and analysis of a statistical problem , and it is , hoped ...
... application although the illustrations , for the most part , are drawn from economic and business fields . The order of treatment is the same as that followed in the planning and analysis of a statistical problem , and it is , hoped ...
Page viii
... of the vol- ume , has been a constant source of encouragement . HORACE SECRIST . NORTHWESTERN UNIVERSITY , EVANSTON , ILLINOIS , November , 1917 . CONTENTS CHAPTER I THE MEANING AND APPLICATION OF STATISTICS AND viii PREFACE.
... of the vol- ume , has been a constant source of encouragement . HORACE SECRIST . NORTHWESTERN UNIVERSITY , EVANSTON , ILLINOIS , November , 1917 . CONTENTS CHAPTER I THE MEANING AND APPLICATION OF STATISTICS AND viii PREFACE.
Page ix
... APPLICATION OF STATISTICS AND STATISTICAL METHODS I. Introduction Statistical facts and modern business , 1-4 ; Pur- poses of a study of statistics and statistical methods , 4-6 ; The purpose and plan of the vol- ume , 6 . II . The ...
... APPLICATION OF STATISTICS AND STATISTICAL METHODS I. Introduction Statistical facts and modern business , 1-4 ; Pur- poses of a study of statistics and statistical methods , 4-6 ; The purpose and plan of the vol- ume , 6 . II . The ...
Page xiii
... 194 ; Appli- cation to frequency and historical series , 194–197 ; Application to discrete and continuous series , 197- 193-233 193-198 PAGES II . Graphic Presentation of Frequency Series 198-220 1. 198 CONTENTS xiii.
... 194 ; Appli- cation to frequency and historical series , 194–197 ; Application to discrete and continuous series , 197- 193-233 193-198 PAGES II . Graphic Presentation of Frequency Series 198-220 1. 198 CONTENTS xiii.
Page xvii
... Application of the Coefficient of Correlation to Historical Series 454-459 ( 2 ) Application of the Coefficient of Correlation to Frequency Series . 459-467 IV . Conclusion 467-468 References 468-469 LIST OF PLATES 1. Value of Petroleum ...
... Application of the Coefficient of Correlation to Historical Series 454-459 ( 2 ) Application of the Coefficient of Correlation to Frequency Series . 459-467 IV . Conclusion 467-468 References 468-469 LIST OF PLATES 1. Value of Petroleum ...
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Common terms and phrases
abscissa accidents accuracy accurately actual prices aggregate American Statistical Association amount arithmetic mean arrangement assigned average deviation average of relatives base basis Bowley Bradstreet's Bulletin Bureau of Labor Census cent central tendency Chapter classified coefficient collected column commodities comparisons computed correlation cross-hatching curve decils desired detail determined diagrams discrete series discussion dispersion distribution districts Dun's EAST NORTH CENTRAL economic employed employers expressed facts fluctuations frequency distributions frequency series geometric mean given graphic groups illustration important included industrial instance Labor Statistics less limitations manufactured maps median metic mode necessary ordinates period phenomena Plate problem purpose quartile rates relation relative prices reported represented respecting result retail price index Royal Statistical Society samples scale schedules standard deviation statistical data statistical methods statistical studies TABLE SHOWING tabular form tabulation tion Total United States Bureau units of measurements wage-rates wages weights Whole Number wholesale prices
Popular passages
Page 34 - That the information furnished under the provisions of this act shall be used only for the statistical purposes for which it is supplied.
Page 116 - Performed consciously or unconsciously, the act of classification is indispensable to and accompanies every scientific inference. A mind is orderly or slovenly, according as it does or does not habitually and accurately classify the facts with which it comes in contact. The success of an investigation, the worth of a conclusion, are in direct proportion to the fidelity to this principle and the exhaustiveness with which the process is carried out.
Page 304 - Now the field worker collecting data for an index number must select from among all these different prices for each of his commodities the one or the few series of quotations that make the most representative sample of the whole. He must find the most reliable source of information, the most representative market, the most typical brands or grades, and the class of dealers who stand in the most influential position. He must have sufficient technical knowledge to be sure that his quotations are for...
Page 4 - Be careful to weigh and record all the possible causes of an event, and do not attribute to one what is really the result of the combination of several. 4. Never compare data which have nothing in common.
Page 297 - These difficulties, and others that might be instanced, though not insuperable, add to the complications of weighting. In regard to all these suggestions, whether for improvement in the arithmetic mean or for the use of a different mean, it must be borne in mind that no index number corresponds to a real thing. It is not like the mean of certain observations in natural science — such, for example, as those for measuring the distance between the earth and the sun — of which any one may err, but...
Page 301 - The manufactured goods fell less in 1890-1896, rose less in 1896-1907, again fell less in 1907-1908, and rose less in 1908-1913. Further, the manufactured goods had the narrower extreme range of fluctuations, the smaller average change from year to year, and the slighter advance in price from one decade to the next.
Page 330 - They can not be made to give apparently inconsistent results like arithmetic means. When published as sums of money, they can be added, subtracted, multiplied, divided, or averaged in any way that is convenient. When weighted on a sound system, they...
Page 320 - Wise choice of the average to use in making an index number, involves careful consideration of the materials to be dealt with and of the purpose in view. (1) If that purpose be to measure the average ratio of change in prices, the geometric mean is the best. Indeed, in strictness, it is the only proper average to employ.
Page 431 - When we vary the cause, the phenomenon changes, but not always to the same extent; it changes, but has variation in its change. The less the variation in that change the more nearly the cause defines the phenomena, the more closely we assert the association or the correlation to be. It is this conception of correlation between two occurrences embracing all...
Page 298 - On the contrary, most of them are "generalpurpose" series, designed with no aim more definite than that of measuring changes in the price level. Once published they are used for many ends — to show the depreciation of gold, the rise in the cost of living, the alternations of business prosperity and depression, and the allowance to be made for changed prices in comparing estimates of national wealth or private income at different times. They are to prove that wages ought to be advanced or kept stable...