Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-squared-790-en_uva-squared-790-en
   name	uva-squared-790-en
   section	Inferential Statistics/NHST/Test statistic/Chi-squared
   type	schoice
   solution	TRUE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	3.001
   p-value	0.3002

   Question

   The table below shows the association between sports and general well-being. In the table, the standardized residuals are shown in parentheses. Which interpretation of the standardized residue -1.3 is correct?

   ——— ———————- ————— ———— Sports General well-being Not so good Fairly Very good Never 20 (11.2) 14 (-1.3) 3 (-4.1) Sometimes 35 (1.4) 395 (14.7) 75 (-15.5) Often 30 (-5.8) 310 (-13.8) 515 (16.1) ——— ———————- ————— ————

   
   
   1. TRUE: The observed number of 14 in this cell is 1.3 standard error less than the expected number.
   2. FALSE: The observed number of 14 in this cell minus 1.3 standard error gives the expected value.
   3. FALSE: Since the standardized residual is negative, there is no dependence.
   
   
   1. The observed number of 14 in this cell is 1.3 standard error lower than the expected number…: Correct
   2. The observed number of 14 in this cell minus 1.3 standard error gives the expected value…: Incorrect
   3. Because the standardized residual is negative, there is no dependence: Incorrect