Technical analysis is based upon three fundamental assumptions:(1)the behavior of market embodies all information; (2) stock prices move along trends; and (3) history will recur, which established statistical averages...Technical analysis is based upon three fundamental assumptions:(1)the behavior of market embodies all information; (2) stock prices move along trends; and (3) history will recur, which established statistical averages method’s dominant role in securities analysis. Although statistical averages method is very popular in practice, its power is diminished by some misforcasting. There are many factors, which may cause misforcasting. One of the most important factors is that the conditions required for statistical analysis and forecasting are not satisfied. If the movement of stock prices, for the most part, is normally distributed, the application of statistical inference, moving averages method and regresion analysis in securities analysis will have satisfacetory results.展开更多
The paper deals with an analysis of how to use certain measures of location in analysis of salaries. One of the traditional measures of location, the mean should offer typical value of variable, representing all its v...The paper deals with an analysis of how to use certain measures of location in analysis of salaries. One of the traditional measures of location, the mean should offer typical value of variable, representing all its values by the best way. Sometimes, the mean is located in the tail of the distribution and gives a very biased idea about the location of the distribution. In these cases, using different measures of location could be useful. Trimmed mean is described. The trimmed mean refers to a situation where a certain proportion of the largest and smallest observations are removed and the remaining observations are averaged. The construction of some measures of location is based on the analysis of outliers. Outliers are characterized. Then the possibilities of the detection of outliers are analyzed. Computing of one-step M-estimator and modified one-step M-estimator of location is described. A comparison of the trimmed means and M-estimators of location is presented. Finally, the paper focuses on the application of the trimmed mean and M-estimators of location in analysis of salaries. The analysis of salaries of employers of the big Slovak companies in second half of the year 2009 is realized. The data from the census are used in the analysis. The median, 20% trimmed mean and the characteristics, based on the one-step M-estimator of location and modified one step M-estimator, are calculated.展开更多
Objective： To study which items need the formulation of national standards and which standards should be first formulated. Methods： Apply the method of the questionnaire survey to collect data, and the statistical a...Objective： To study which items need the formulation of national standards and which standards should be first formulated. Methods： Apply the method of the questionnaire survey to collect data, and the statistical analysis adopt the frequency and weighted average method. Results： Propose the items of acupuncture and moxibustion which need the urgent formulation of standards and the sequence in the formulation of standard items. Conclusion： Provid important bases for the follow-up report of national standard items and avoid temporary formulation of standards without plan .展开更多
文摘Technical analysis is based upon three fundamental assumptions:(1)the behavior of market embodies all information; (2) stock prices move along trends; and (3) history will recur, which established statistical averages method’s dominant role in securities analysis. Although statistical averages method is very popular in practice, its power is diminished by some misforcasting. There are many factors, which may cause misforcasting. One of the most important factors is that the conditions required for statistical analysis and forecasting are not satisfied. If the movement of stock prices, for the most part, is normally distributed, the application of statistical inference, moving averages method and regresion analysis in securities analysis will have satisfacetory results.
文摘The paper deals with an analysis of how to use certain measures of location in analysis of salaries. One of the traditional measures of location, the mean should offer typical value of variable, representing all its values by the best way. Sometimes, the mean is located in the tail of the distribution and gives a very biased idea about the location of the distribution. In these cases, using different measures of location could be useful. Trimmed mean is described. The trimmed mean refers to a situation where a certain proportion of the largest and smallest observations are removed and the remaining observations are averaged. The construction of some measures of location is based on the analysis of outliers. Outliers are characterized. Then the possibilities of the detection of outliers are analyzed. Computing of one-step M-estimator and modified one-step M-estimator of location is described. A comparison of the trimmed means and M-estimators of location is presented. Finally, the paper focuses on the application of the trimmed mean and M-estimators of location in analysis of salaries. The analysis of salaries of employers of the big Slovak companies in second half of the year 2009 is realized. The data from the census are used in the analysis. The median, 20% trimmed mean and the characteristics, based on the one-step M-estimator of location and modified one step M-estimator, are calculated.
基金TCM project supported by the National Program of Science and Technology Development (2006BA121B01)
文摘Objective： To study which items need the formulation of national standards and which standards should be first formulated. Methods： Apply the method of the questionnaire survey to collect data, and the statistical analysis adopt the frequency and weighted average method. Results： Propose the items of acupuncture and moxibustion which need the urgent formulation of standards and the sequence in the formulation of standard items. Conclusion： Provid important bases for the follow-up report of national standard items and avoid temporary formulation of standards without plan .
