Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-paired-samples-426-en_uva-paired-samples-426-en
   name	uva-paired-samples-426-en
   section	Inferential Statistics/Parametric Techniques/t-test/Paired samples
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Calculation
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	4.244
   p-value	0.0748

   Question

   From a randomly drawn sample of 7 individuals, heart rate was measured at 8 mornings and 4 p.m., with the results being:______________. morning: 75, 74, 70, 79, 65, 70, 68. afternoon: 76, 76, 69, 80, 66, 73, 69. We want to test H₀: μ(morning) = μ(afternoon) against H₁: μ(morning) ≠ μ(afternoon). The right critical value of the test with a two-sided risk of 0.05 is equal to

   
   
   1. TRUE: 2.4469
   2. FALSE: 2.3646
   3. FALSE: 2.1788
   4. FALSE: 1.9432
   
   
   1. 2.4469: Correct
   2. 2.3646: Incorrect
   3. 2.1788: Incorrect
   4. 1.9432: Incorrect