Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uu-Sample-mean-601-en_uu-Sample-mean-601-en
   name	uu-Sample-mean-601-en.Rmd
   section	Inferential Statistics/Sampling Distributions/Sample mean
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Conceptual, Calculation
   Language	English
   Level	Statistical Literacy

   Question

   A researcher wishes to determine if the mean score on a standardized reading test is significantly higher than 3. According to the test makers the mean is 3.00 with a standard deviation of 0.95. A random sample of 25 third graders scored an average of 3.20 on the reading test. What are the characteristics of the comparison distribution for this testing scenario?

   
   
   1. TRUE: $N(3.00, 0.19)$
   2. FALSE: $N(3.20, 0.19)$
   3. FALSE: $N(3.00, 1.05)$
   4. FALSE: $t(25)$
   
   
   1. This answer is correct.
   2. This answer is incorrect.
   3. This answer is incorrect.
   4. This answer is incorrect.