Exam 1

1. Metainformation

   Tag	Value
   file	Descriptive-statistics_uva-standard-deviation-490-en_uva-standard-deviation-490-en
   name	uva-standard-deviation-490-en
   section	Descriptive statistics/Summary Statistics/Measures of Spread/Standard Deviation
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Calculation
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	4.195
   p-value	0.0856

   Question

   Of 5 nurses, their attitudes before and after a given intervention was measured with the following results:______ BEFORE: 46, 38, 30, 42, 41. AFTER: 43, 43, 37, 39, 45. The estimated standard deviation of the mean difference between the post-measurement and pre-measurement is equal to:

   
   
   1. TRUE: 2.1
   2. FALSE: 2.35
   3. FALSE: 4.2
   4. FALSE: 4.69
   
   
   1. 2.1: Correct
   2. 2.35: Incorrect
   3. 4.2: Incorrect
   4. 4.69: Incorrect