The test statistic in a right tailed test is z=2.50, use the given information to find the p-value. state the conclusion about the null hypothesis

Asked on by surfer3

1 Answer | Add Yours

justaguide's profile pic

justaguide | College Teacher | (Level 2) Distinguished Educator

Posted on

When the z-score is given, the p-value can be estimated using the formula `int_(-oo)^z 1/sqrt (2*pi)*e^(-u^2/2) du`

For a z-score of 2.5, the corresponding p-value is 0.0062

This is a very small value less than 0.01 or even 0.05 and it usually leads to the rejection of the null hypothesis.

Due to the extremely small p-value the null hypothesis is rejected.


We’ve answered 319,808 questions. We can answer yours, too.

Ask a question