Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uva-sample-mean-1305-en_uva-sample-mean-1305-en
   name	uva-sample-mean-1305-en
   section	Inferential Statistics/Sampling Distributions/Sample mean
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy
   IRT-Difficulty	2
   p-value	0.5905

   Question

   We draw a random sample among 2,500 adults. Suppose X is the number of people in the sample living unmarried with a partner. The probability that at least 1/5 of this sample is unmarried cohabiting can be written as:

   
   
   1. FALSE: P (X≥1/5).
   2. FALSE: P (X≤500).
   3. TRUE: P (X≥500).
   4. FALSE: P (X≤ 2000).
   5. FALSE: P (X≤ 2500).
   
   
   1. P (X≥1/5)…: Incorrect
   2. P (X≤ 500)..: Incorrect
   3. P (X≥500): Correct
   4. P (X≤ 2000)..: Incorrect
   5. P (X≤ 2500)..: Incorrect