Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-squared-60-en_uva-squared-60-en
   name	uva-squared-60-en
   section	Inferential Statistics/NHST/Test statistic/Chi-squared
   type	schoice
   solution	FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3
   p-value	0.31

   Question

   Two researchers perform a chi-square test for independence on a dataset for a 2-by-2 table. They obtain a P-value that is is less than 0.05. The researchers use a significance level of 0.05 and so they reject the null hypothesis. A disagreement now arises about the conclusion. The first researcher claims that with this result the conclusion must be that the two variables are independent, while the second researcher claims that the variables are actually dependent.

   
   
   1. FALSE: The first researcher is right and the second is wrong.
   2. TRUE: The first investigator is wrong and the second is right.
   3. FALSE: Both researchers are wrong.
   
   
   1. The first researcher is right and the second is wrong: Incorrect
   2. The first investigator is wrong and the second is right: Correct
   3. Both investigators are wrong…: Incorrect