Chi-square goodness of fit test - Hypothesis Testing
Chi-square goodness of fit test
Lessons
Notes:
The chi-square distribution is the sum of standard normal distribution(s) squared. The degrees of freedom for a chi-square distribution is how many standard normal distribution(s) squared you are summing.
Normal distribution:
Normal Distribution with mean '' and standard deviation ''
So Chi-Square Distribution with k degrees of freedom:
Hypothesis Testing
Chi-Square distribution hypothesis testing comes in handy for seeing whether the observed value of some experiment fit the expected values.
: the observed data point
: the estimated data point
Test-Statistic:
The critical value is found by looking at the Chi Distribution table
-
Intro Lesson
