Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-statistical-errors-909-en_uva-statistical-errors-909-en
   name	uva-statistical-errors-909-en
   section	Inferential Statistics/NHST/Statistical errors
   type	schoice
   solution	FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	1.971
   p-value	0.7824

   Question

   Suppose a researcher has four averages for which she wants to calculate multiple comparison Tukey confidence intervals wants to calculate. There are 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 (8, 12) and (16, 20). Now what are possibly Tukey 95% confidence intervals that correspond to the above two ordinary confidence intervals?

   
   
   1. FALSE: (7, 11) and (15,19)
   2. TRUE: (7, 13) and (15, 21)
   3. FALSE: (9, 11) and (17, 19)
   
   
   1. (7, 11) and (15,19): Incorrect
   2. (7, 13) and (15, 21): Correct
   3. (9, 11) and (17, 19): Incorrect