When using null hypothesis statistical testing (NHST) and you decide to change t
ID: 3050006 • Letter: W
Question
When using null hypothesis statistical testing (NHST) and you decide to change the alpha from alpha =.01 to alpha .05: 1. A (larger, smaller) z-score is required to reject the null hypothesis 2. The upper limit of the probability of a type 1 Error (decreases, increases) 3. Cohen’s d will be (unaffected, smaller, larger)Please explain each answer When using null hypothesis statistical testing (NHST) and you decide to change the alpha from alpha =.01 to alpha .05: 1. A (larger, smaller) z-score is required to reject the null hypothesis 2. The upper limit of the probability of a type 1 Error (decreases, increases) 3. Cohen’s d will be (unaffected, smaller, larger)
Please explain each answer 1. A (larger, smaller) z-score is required to reject the null hypothesis 2. The upper limit of the probability of a type 1 Error (decreases, increases) 3. Cohen’s d will be (unaffected, smaller, larger)
Please explain each answer
Explanation / Answer
1)as we are increasing level of significance that means we are increasing the chance to reject null hypothesis for which we need smaller z score.
2) Increases ; as alpha level itself is a type I error
3) unaffected: as it does nt depend on level of significance.