Home » Certification Exams Questions » At a significance level 5%, a Black Belt committed rejected the fact that the data belongs to a normal distribution, when in reality it belonged to the distribution. What did the Black Belt do?

At a significance level 5%, a Black Belt committed rejected the fact that the data belongs to a normal distribution, when in reality it belonged to the distribution. What did the Black Belt do?

OPTIONS

He committed a Type I error
He committed a Type II error
He committed a Type III error
None of the above

ANSWER

He committed a Type I error

EXPLANATION

The condition described in the question best meets the description of a Type I error, so THE FIRST OPTION is correct.

«For a data meeting normality conditions, which of the tests mentioned below would you use to test if the data comes from the population assuming sample size is 25?

If Confidence Level is 90%, what should the Black Belt assume about his statistical test?»