Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-two-sided-hypothesis-408-en_uva-two-sided-hypothesis-408-en
   name	uva-two-sided-hypothesis-408-en
   section	Inferential Statistics/NHST/Hypothesis/Two sided hypothesis
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2.484
   p-value	0.4709

   Question

   From two samples randomly drawn from two populations, the following is known:Ê. Sample 1: n = 10, mean = 56, s.d. = 9. Sample 2: n = 5, mean = 64, s.d. = 20. When testing whether the population variances are equal, the null hypothesis is

   
   
   1. FALSE: Μ1 = μ2
   2. FALSE: S12 = s22
   3. FALSE: ¯X1 = ¯X2
   4. TRUE: Σ12 = σ22
   
   
   1. Μ1 = μ2: Incorrect
   2. S12 = s22: Incorrect
   3. ¯X1 = ¯X2: Incorrect
   4. Σ12 = σ22: Correct