Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufgb-confidenceinterval-002-en_vufgb-confidenceinterval-002-en
   name	vufgb-confidenceinterval-002-en
   section	Inferential Statistics/Regression/Confidence interval, Inferential Statistics/Regression/R squared
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   ID	451ba
   Type	Calculation, Interpreting output
   Program
   Language	English
   Level	Statistical Thinking

   Question

   In the analysis that was conducted on the data of 348 students, three variables were used: grade on blackboard tests (BBtot), grade on practicum (PRA) and grade on exam (tenteind). It was assumed in advance assumed that all grades have a positive relationship with each other.

   Determine the 95% confidence interval for the regression coefficient of PRA.

   

   
   
   1. FALSE: $−0.067 < \beta_{2} < 0.382$
   2. FALSE: $−0.024 < \beta_{2} < 0.282$
   3. FALSE: $0.079 < \beta_{2} < 0.235$
   4. TRUE: $0.004 < \beta_{2} < 0.310$
   
   
   1. Incorrect
   2. Incorrect
   3. Incorrect
   4. Correct