MATHEMATICS
Question 10
When calculating the average for a set of data with extreme scores (eg. household income), which measure of central tendency would be best used?
Answer
[removed]  A.  mean 
[removed]  B.  median 
[removed]  C.  mode 
[removed]  D.  standard error 
0.5 points
Question 11
Which of the following is a measure of how well a sample approximates the characteristics of a population?
Answer
[removed]  A.  sampling accuracy 
[removed]  B.  sampling error 
[removed]  C.  sampling generalizability 
[removed]  D.  sampling consistency 
0.5 points
Question 12
What term is associated with scores that are at the extreme ends of the distribution? 
 Answer
[removed]  A.  Variability 
[removed]  B.  Skew 
[removed]  C.  Outlier 
[removed]  D.  Percentile 
0.5 points
Question 13
Which of the following provides you with a measure of how well your sample approximates the population?
Answer
[removed]  A.  Generalizability 
[removed]  B.  Population 
[removed]  C.  Hypothesis 
[removed]  D.  Sampling error 
0.5 points
Question 14
When are descriptive measures most often used?
Answer
[removed]  A.  to describe how often something occurs  
[removed]  B.  to determine if a sample is representative of a population  
[removed]  C. 


[removed]  D. 

0.5 points
Question 15
How are inferential statistics most often used?
Answer
[removed]  A.  to infer to the quality of data collected  
[removed]  B.  to organize and describe data  
[removed]  C.  to make inferences from the sample to the population  
[removed]  D. 

0.5 points
Question 16
What is the standard acceptable percentage used by social, behavioral and educational statisticians to determine the probability of an event occurring due to chance? 
 Answer
[removed]  A.  1 percent 
[removed]  B.  5 percent 
[removed]  C.  95 percent 
[removed]  D.  99 percent 
0.5 points
Question 17
What type of hypothesis posits a difference between groups where the direction is specified?
Answer
[removed]  A.  Nondirectional hypothesis 
[removed]  B.  Directional hypothesis 
[removed]  C.  Research hypothesis 
[removed]  D.  Null hypothesis 
0.5 points
Question 18
Which level of measurement is concerned only with the characteristics of an outcome that fits into a category?
Answer
[removed]  A.  ordinal 
[removed]  B.  interval 
[removed]  C.  rank 
[removed]  D.  nominal 
0.5 points
Question 19
What is the basis for the normal curve and inferential statistics?
Answer
[removed]  A.  mean 
[removed]  B.  asymptotic 
[removed]  C.  probability 
[removed]  D.  symmetry 
0.5 points
Question 20
Variability is a measure of how much individual scores differ from the ______________.
Answer
[removed]  A.  Mean 
[removed]  B.  Range 
[removed]  C.  Standard deviation 
[removed]  D.  Variance 