chi2_goodness(A, B, alpha)

Computes a Chi-Square goodness of fit. Array A stores probabilities and array B stores corresponding observed frequencies. The test uses significance level alpha.

See also chi2_table chi2_independent 

Example

p=(.1, .2, .3, .3, .1)

( 0.1 0.2 0.3 0.3 0.1 )

f=(3, 7, 9, 11, 2)

( 3 7 9 11 2 )

chi2_goodness(p,f,.05)

Chi-Square Goodness-of-fit Test.

Hypothesis test for goodness of fit.

Ho : Variable has the specified distribution

Ha : Variable does not have the specified distribution

Significance level : 0.05 (5.0%)

Results:

Test statistics X2 : 0.7604166666666667

Critical right value found is 9.487729036756633

P value is : 0.9436745964852309

Do not reject the null hypothesis.