Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-confidence-level-104-en_uva-confidence-level-104-en
   name	uva-confidence-level-104-en
   section	Inferential Statistics/Confidence Intervals/Confidence level
   type	schoice
   solution	FALSE, FALSE, TRUE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3
   p-value	0.311

   Question

   Suppose a researcher has four averages for which she wants to calculate multiple comparison Tukey confidence intervals wants to calculate. With four averages a total of six possible differences between averages and therefore six confidence intervals. For comparison, the researcher also calculates comparison also calculates the ordinary 95% confidence intervals. Two of these ordinary 95% confidence intervals are (3; 7) and (12; 16). What are now possible Tukey 95% confidence intervals that correspond to the above two ordinary confidence intervals?

   
   
   1. FALSE: (3.5; 6.5) and (12.5; 15.5).
   2. FALSE: (4; 6) and (12.5; 15.5).
   3. TRUE: (2.5; 7.5) and (11.5; 16.5).
   
   
   1. (3.5; 6.5) and (12.5; 15.5)…: Incorrect
   2. (4; 6) and (12.5; 15.5)…: Incorrect
   3. (2.5; 7.5) and (11.5; 16.5): Correct