Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_eur-inferential_statistics-118-en_eur-inferential_statistics-118-en
   name	eur-inferential_statistics-118-en
   section	Inferential Statistics/Confidence Intervals/Confidence level
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE
   Type	Calculate
   Program	Calculator
   Language	English
   Level	Statistical Literacy

   Question

   A sociologist determines that out of 200 couples that had children within 2 years of getting married, 80 were divorced after 5 years. If p is the population proportion of couples that had children within 2 years of getting married and were divorced after 5 years, what is the 90% confidence interval for this proportion?

   
   
   1. FALSE: 0.400 ± 0.035
   2. TRUE: 0.400 ± 0.057
   3. FALSE: 0.400 ± 0.067
   4. FALSE: 0.400 ± 0.088
   
   

   Solution

   The correct answer is 0.400 ± 0.057

   
   
   1. This answer is incorrect
   2. This is the correct answer!
   3. This answer is incorrect
   4. This answer is incorrect