Useful tips for everyday
Is there a way to test a causal relation? And the lack of a correlation would *not* indicate that there is no causal relation. IMPORTANT:…
How is residual sum of squares used in regression? A residual sum of squares (RSS) is a statistical technique used to measure the amount of…
What is the slope coefficient in the regression equation? The y variable is often termed the criterion variable and the x variable the predictor variable.…
Can Chi-square test be used for small sample size? Another consideration one must make is that the chi-square statistic is sensitive to sample size. Most…
Which distribution is a particular case of multinomial distribution? The more widely known binomial distribution is a special type of multinomial distribution in which there…
Why should we not worry about the denominator in naive Bayes? Question. In this exercise about computing the denominator for the naive Bayes classifier, it…
What is the relationship between sample size and significance testing? As the sample size increases, so does the power of the significance test. This is…
Is 50th percentile the same as median? A 50th percentile is the same as a “median.” An average, or “mean,” is similar but a weighted…
How do you measure smoothness? In laboratory tests, smoothness is traditionally measured by air-leakage methods, such as Parker PrintSurf, Sheffield, Bekk, or Bendtsen tests. Surface…
How do you know if a test is one tailed or two tailed? A one-tailed test has the entire 5% of the alpha level in…