enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Chi-squared test - Wikipedia

   en.wikipedia.org/wiki/Chi-squared_test

   A chi-squared test (also chi-square or χ 2 test) is a statistical hypothesis test used in the analysis of contingency tables when the sample sizes are large. In simpler terms, this test is primarily used to examine whether two categorical variables ( two dimensions of the contingency table ) are independent in influencing the test statistic ...

3. Pearson's chi-squared test - Wikipedia

   en.wikipedia.org/wiki/Pearson's_chi-squared_test

   Pearson's chi-squared test or Pearson's test is a statistical test applied to sets of categorical data to evaluate how likely it is that any observed difference between the sets arose by chance. It is the most widely used of many chi-squared tests (e.g., Yates , likelihood ratio , portmanteau test in time series , etc.) – statistical ...

4. Chi-squared distribution - Wikipedia

   en.wikipedia.org/wiki/Chi-squared_distribution

   The chi-squared distribution has numerous applications in inferential statistics, for instance in chi-squared tests and in estimating variances. It enters the problem of estimating the mean of a normally distributed population and the problem of estimating the slope of a regression line via its role in Student's t-distribution .

5. Yates's correction for continuity - Wikipedia

   en.wikipedia.org/wiki/Yates's_correction_for...

   This reduces the chi-squared value obtained and thus increases its p-value. The effect of Yates's correction is to prevent overestimation of statistical significance for small data. This formula is chiefly used when at least one cell of the table has an expected count smaller than 5.

6. Goodness of fit - Wikipedia

   en.wikipedia.org/wiki/Goodness_of_fit

   where and are the same as for the chi-square test, denotes the natural logarithm, and the sum is taken over all non-empty bins. Furthermore, the total observed count should be equal to the total expected count: ∑ i O i = ∑ i E i = N {\displaystyle \sum _{i}O_{i}=\sum _{i}E_{i}=N} where N {\textstyle N} is the total number of observations.

7. Which 38 Republicans voted against Trump's plan to keep the ...

   www.aol.com/38-republicans-voted-against-keeping...

   The U.S Capitol is seen after U.S, President-elect Donald Trump called on U.S. lawmakers to reject a stopgap bill to keep the government funded past Friday, raising the likelihood of a partial ...