Exam 1

1. Metainformation

   Tag	Value
   file	Distributions_uva-normal-1352-en_uva-normal-1352-en
   name	uva-normal-1352-en
   section	Distributions/Continuous/Normal
   type	schoice
   solution	FALSE, FALSE, FALSE, FALSE, TRUE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   Caps of Coke bottles vary slightly in diameter. Suppose you take two random samples of 40 and 60 caps, respectively. Do they have the same distribution?

   
   
   1. FALSE: Yes, they have the same means and standard errors.
   2. FALSE: No, the sample of 40 caps has a larger mean and standard error than the sample of 60.
   3. FALSE: No, the sample of 60 caps has a larger mean and standard error than the sample of 40.
   4. FALSE: No, they have different means and standard errors.
   5. TRUE: No, they have the same means but different standard errors.
   
   
   1. Yes, they have the same averages and standard errors…: Incorrect
   2. No, the sample of 40 caps has a larger mean and standard error than the sample of 60…: Incorrect
   3. No, the sample of 60 caps has a larger mean and standard error than the sample of 40: Incorrect
   4. No, they have different means and standard errors…: Incorrect
   5. No, they have the same means but different standard errors…: Correct