Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uu-Critical-value-809-en_uu-Critical-value-809-en
   name	uu-Critical-value-809-en
   section	Inferential Statistics/NHST/Significance level/Critical value
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Case
   Language	English
   Level	Statistical Literacy

   Question

   The scores in a sample of n = 12 have mean M = 5 and standard error sM = 1. A two-sided t-test with $\alpha$ = 5% results in a test statistic of t = 2.5. What are the lower and upper bounds of the 95% confidence interval, respectively?

   
   
   1. FALSE: The confidence interval is irrelevant because the t-test is not significant.
   2. FALSE: Lower limit = 2.5, upper limit = 7.5.
   3. FALSE: Lower limit = 2.821, upper limit = 7.179.
   4. TRUE: Lower limit = 2.799, upper limit = 7.201.