Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uu-Testing-800-en_uu-Testing-800-en
   name	uu-Testing-800-en
   section	Inferential Statistics/Confidence Intervals/Testing
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Case
   Program	SPSS
   Language	English
   Level	Statistical Literacy

   Question

   In a study of reading speed of nine children, a pretest is taken noting the time it takes the child to read a given piece of text; after a period of reading instruction, a parallel test is taken. The mean reading time on the pretest is 63 seconds, the mean reading time on the ntest is 58 seconds, and the standard deviation (standard deviation) of the difference scores is 6. Using a confidence interval, test whether the mean reading time on the follow-up test differs from the mean reading time on the pretest ($\alpha = .01$). What is the conclusion?

   
   
   1. FALSE: The result is significant, because the confidence interval includes 0.
   2. FALSE: The result is not significant because the confidence interval does not include 0.
   3. FALSE: The result is significant because the confidence interval does not include 0.
   4. TRUE: The result is not significant because the confidence interval includes 0.