Why do we reject a chi-square statistic when the p-value to the right is larger?












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I would like to understand why, instead of just following steps given.



Given that we calculate the chi-square statistic (A), and comparing it against the test statistic for the given significance level (B), we reject null hypothesis if the A is higher than B.



However, this is where I'm a little confused. Given an example where $alpha = 0.05$ for instance, if my test statistic (A) is smaller, that means that the area to the right ($alpha$) is larger than 0.05.



In other words, the probability of a Type I error is higher than 0.05. Hence, shouldn't we be rejecting the null hypothesis when A is smaller than B instead?










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    0














    I would like to understand why, instead of just following steps given.



    Given that we calculate the chi-square statistic (A), and comparing it against the test statistic for the given significance level (B), we reject null hypothesis if the A is higher than B.



    However, this is where I'm a little confused. Given an example where $alpha = 0.05$ for instance, if my test statistic (A) is smaller, that means that the area to the right ($alpha$) is larger than 0.05.



    In other words, the probability of a Type I error is higher than 0.05. Hence, shouldn't we be rejecting the null hypothesis when A is smaller than B instead?










    share|cite|improve this question

























      0












      0








      0







      I would like to understand why, instead of just following steps given.



      Given that we calculate the chi-square statistic (A), and comparing it against the test statistic for the given significance level (B), we reject null hypothesis if the A is higher than B.



      However, this is where I'm a little confused. Given an example where $alpha = 0.05$ for instance, if my test statistic (A) is smaller, that means that the area to the right ($alpha$) is larger than 0.05.



      In other words, the probability of a Type I error is higher than 0.05. Hence, shouldn't we be rejecting the null hypothesis when A is smaller than B instead?










      share|cite|improve this question













      I would like to understand why, instead of just following steps given.



      Given that we calculate the chi-square statistic (A), and comparing it against the test statistic for the given significance level (B), we reject null hypothesis if the A is higher than B.



      However, this is where I'm a little confused. Given an example where $alpha = 0.05$ for instance, if my test statistic (A) is smaller, that means that the area to the right ($alpha$) is larger than 0.05.



      In other words, the probability of a Type I error is higher than 0.05. Hence, shouldn't we be rejecting the null hypothesis when A is smaller than B instead?







      probability hypothesis-testing






      share|cite|improve this question













      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










      asked Nov 23 at 6:07









      statsguy21

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