Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-confidence-level-781-en_uva-confidence-level-781-en
   name	uva-confidence-level-781-en
   section	Inferential Statistics/Confidence Intervals/Confidence level
   type	schoice
   solution	FALSE, FALSE, TRUE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	1.191
   p-value	0.8798

   Question

   The margin of error of a confidence interval for the population mean becomes smaller as

   
   
   1. FALSE: The confidence level increases
   2. FALSE: The sample size decreases
   3. TRUE: The standard deviation in the data decreases
   
   
   1. The confidence level gets higher: Incorrect
   2. The sample size decreases: Incorrect
   3. The standard deviation in the data decreases: Correct