Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uu-Confidence-Intervals-802-en_uu-Confidence-Intervals-802-en
   name	uu-Confidence-Intervals-802-en
   section	Inferential Statistics/Confidence Intervals
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Calculation, Conceptual
   Language	English
   Level	Statistical Literacy

   Question

   To determine the effect of an intervention, a 2-sided t-test with $\alpha$ = 5% performed. The corresponding 95% confidence interval ranges from -0.4 to 3.8. What can you conclude from these data?

   
   
   1. TRUE: The effect of the intervention is not significant.
   2. FALSE: The population mean equals 1.7 with 95% certainty.
   3. FALSE: The probability of a population mean less than -0.4 or greater than 3.8 is 5%.
   4. FALSE: The conclusions in a, b and c are all correct.
   
   
   1. This answer is correct.
   2. This answer is incorrect.
   3. This answer is incorrect.
   4. This answer is incorrect.