Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-statistical-errors-910-en_uva-statistical-errors-910-en
   name	uva-statistical-errors-910-en
   section	Inferential Statistics/NHST/Statistical errors
   type	schoice
   solution	FALSE, FALSE, TRUE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2.775
   p-value	0.4312

   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 (10, 14) and (22, 26). Now what are possibly Tukey 95% confidence intervals that correspond to the above two ordinary confidence intervals?

   
   
   1. FALSE: (9.5, 14.5) and (21.5, 25.5)
   2. FALSE: (11, 13) and (23, 25)
   3. TRUE: (9, 15) and (21, 27)
   
   
   1. (9.5, 14.5) and (21.5, 25.5): Incorrect
   2. (11, 13) and (23, 25): Incorrect
   3. (9, 15) and (21, 27): Correct