Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uu-Critical-value-810-en_uu-Critical-value-810-en
   name	uu-Critical-value-810-en
   section	Inferential Statistics/NHST/Significance level/Critical value
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy

   Question

   In a science quiz, 10 Utrecht and 10 Amsterdam students compete against each other. The Utrecht students score 7 points more than the Amsterdam students, and the pooled variance of the scores equals 45. Do the scores of the Utrecht and Amsterdam students differ significantly from each other in a 2-sided test with $\alpha$ = 5%?

   
   
   1. FALSE: No, because the test statistic is 1.04 and the critical limits are ± 2.101.
   2. FALSE: No, because the test statistic is 1.04 and the critical limits are ± 2.262.
   3. TRUE: Yes, because the test statistic is 2.33 and the critical limits are ± 2.101.
   4. FALSE: Yes, because the test statistic is 2.33 and the critical limits are ± 2.262.