Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-confidence-level-356-en_uva-confidence-level-356-en
   name	uva-confidence-level-356-en
   section	Inferential Statistics/Confidence Intervals/Confidence level
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	4.234
   p-value	0.0794

   Question

   From a normally distributed population with expectation μ, a sample is drawn. Using this, H₀: μ = 20 is tested (with α = 5%) and a 95% confidence interval for μ established. Which of the following two statements are TRUE? 1: If H₀ is rejected, the value 20 is in the confidence interval.Ê 2: The sample mean is always in the confidence interval.

   
   
   1. FALSE: Assertions 1 and 2 are both correct.
   2. FALSE: Assertion 1 is true, assertion 2 is false.
   3. TRUE: Assertion 1 is false, assertion 2 is true.
   4. FALSE: Assertions 1 and 2 are both false.
   
   
   1. Assertions 1 and 2 are both correct: Incorrect
   2. Assertion 1 is correct, assertion 2 is incorrect: Incorrect
   3. Assertion 1 is incorrect, assertion 2 is correct: Correct
   4. Assertions 1 and 2 are both incorrect: Incorrect