In: Statistics and Probability
If someone keeps everything else in their data the same but decides to use an alpha of .10 instead of .05 explain exactly if/how each the following would change (i.e., increase/decrease/stay the same) and briefly explain why for each [10 line maximum]
: • critical rejection region
• chance of making a Type I error
• change of make a Type II error
• the width of a confidence interval
• the effect size
(1)
Correct option:
increase
Explanation:
By increasing Significance Level = from 0.05 to 0.10, the critical rejection region will increase
(2)
Correct option:
increase
Explanation:
By increasing Significance Level = from 0.05 to 0.10, the chance of making a Type I error will increase
(3)
Correct option:
decrease
Explanation:
By increasing Significance Level = from 0.05 to 0.10, the chance of making a Type II error will decrease
(4)
Correct option:
decrease
Explanation:
By increasing Significance Level = from 0.05 to 0.10, the width of a confidence interval will decrease
(5)
Correct option:
stay the same
Explanation:
By increasing Significance Level = from 0.05 to 0.10, the effect size will not change.