Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-sample-mean-1361-en_uva-sample-mean-1361-en
   name	uva-sample-mean-1361-en
   section	Inferential Statistics/Sampling Distributions/Sample mean
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   Five tennis balls in a box have diameters 62, 63, 64, 64 and 65 mm, respectively. What is the mean and standard deviation of this population?

   
   
   1. FALSE: The mean is 2.5 and the standard deviation is 1.
   2. FALSE: The mean is 63 and the standard deviation is 1.
   3. TRUE: The mean is 63.6 and the standard deviation is 1.02.
   4. FALSE: The mean is 64 and the standard deviation is 1.
   
   
   1. The mean is 2.5 and the standard deviation is 1.:Incorrect
   2. The mean is 63 and the standard deviation is 1.:Incorrect
   3. The mean is 63.6 and the standard deviation is 1.02.: Correct
   4. The mean is 64 and the standard deviation is 1.: Incorrect