The characteristics of the chi-square distribution are: A. The value of chi-square is never negative. B. The chi-square distribution is positively skewed. C. There is a family of chi-square distributions.
A chi-square statistic which is near zero suggests that the observations are exceptionally consistent with the hypothesis.
square
The underlying principle is that the square of an independent Normal variable has a chi-square distribution with one degree of freedom (df). A second principle is that the sum of k independent chi-squares variables is a chi-squared variable with k df.
It is the value of a random variable which has a chi-square distribution with the appropriate number of degrees of freedom.
The characteristics of the chi-square distribution are: A. The value of chi-square is never negative. B. The chi-square distribution is positively skewed. C. There is a family of chi-square distributions.
A Chi-square table is used in a Chi-square test in statistics. A Chi-square test is used to compare observed data with the expected hypothetical data.
chi-square http://en.wikipedia.org/wiki/Chi-square_test
The chi-square test is pronounced "keye-skwair" test.
A chi-square statistic which is near zero suggests that the observations are exceptionally consistent with the hypothesis.
square
the Chi Square distribution is a mathematical distribution that is used directly or indirectly in many tests of significance. The most common use of the chi square distribution is to test differences among proportions
The underlying principle is that the square of an independent Normal variable has a chi-square distribution with one degree of freedom (df). A second principle is that the sum of k independent chi-squares variables is a chi-squared variable with k df.
Negative?
If your chi square test has a probability of 0.05 or less it is likely, but not certain, that your hypothesis is not correct.
It is the value of a random variable which has a chi-square distribution with the appropriate number of degrees of freedom.
The Chi-squared statistic can be used to test for association.