Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-test-607-en_uva-test-607-en
   name	uva-test-607-en
   section	Inferential Statistics/Parametric Techniques/t-test
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3.712
   p-value	0.1707

   Question

   In a random sample, the variables X and Y were measured in eight individuals were measured. The Spearman rank correlation coefficient r_S of X and Y is -0.69. If we use the Pearson correlation coefficient to prove this null hypothesis that the true correlation in the population is 0 would want to test (5% risk, two-sided) then the limits of the critical range are

   
   
   1. FALSE: +/- 0.6319
   2. FALSE: +/- 0.7067
   3. TRUE: +/- 0.6664
   4. FALSE: +/- 0.7646
   
   
   1. +/- 0.6319: Incorrect
   2. 0.7067: Incorrect
   3. +/- 0.6664: Correct
   4. 0.7646: Incorrect