Univariate Data Cleaning
... Sum of squares, variance, std, sem and related error terms are all inflated, decreasing the power of significance tests and increasing Type II error (misses) ...
... Sum of squares, variance, std, sem and related error terms are all inflated, decreasing the power of significance tests and increasing Type II error (misses) ...
Introduction, descriptive statistics, R and data visualization
... This is all a bit abstract at this point, and likely adding to the potential confusion about this is the fact that the words population and sample will have an everyday language meaning for most people. When we use them in a statistical context the meaning of them is very specifically given by the d ...
... This is all a bit abstract at this point, and likely adding to the potential confusion about this is the fact that the words population and sample will have an everyday language meaning for most people. When we use them in a statistical context the meaning of them is very specifically given by the d ...
Standard errors: A review and evaluation of standard error
... the reliability of such estimates. Standard errors are measures of reliability of a given sample's descriptive statistics with respect to the population's true values. This article reviews some widely used descriptive statistics as well as their standard error estimators and their confidence interva ...
... the reliability of such estimates. Standard errors are measures of reliability of a given sample's descriptive statistics with respect to the population's true values. This article reviews some widely used descriptive statistics as well as their standard error estimators and their confidence interva ...
NOTE: There is a lot of reading, but I have broken them into chunks
... decisions about the merit, effectiveness, or value of a particular practice, strategy, or program that has presumably already been developed and tested through the other types of research studies. An example of evaluation research would be a study to find out if teaching to the "multiple intelligenc ...
... decisions about the merit, effectiveness, or value of a particular practice, strategy, or program that has presumably already been developed and tested through the other types of research studies. An example of evaluation research would be a study to find out if teaching to the "multiple intelligenc ...
Estimating the sample mean and standard deviation from the
... Scenario C2 assumes that the first quartile, q1 , and the third quartile, q3 , are also available in addition to C1 . In this setting, Bland’s method [10] extended Hozo et al.’s results by incorporating the additional information of the interquartile range (IQR). He further claimed that the new esti ...
... Scenario C2 assumes that the first quartile, q1 , and the third quartile, q3 , are also available in addition to C1 . In this setting, Bland’s method [10] extended Hozo et al.’s results by incorporating the additional information of the interquartile range (IQR). He further claimed that the new esti ...
Estimating the sample mean and standard deviation from the
... Scenario C2 assumes that the first quartile, q1 , and the third quartile, q3 , are also available in addition to C1 . In this setting, Bland’s method [10] extended Hozo et al.’s results by incorporating the additional information of the interquartile range (IQR). He further claimed that the new esti ...
... Scenario C2 assumes that the first quartile, q1 , and the third quartile, q3 , are also available in addition to C1 . In this setting, Bland’s method [10] extended Hozo et al.’s results by incorporating the additional information of the interquartile range (IQR). He further claimed that the new esti ...
