PSY7864 Week 1 Quiz 1
User  

Course  PSY7864 
Test  [u01q1] Week 1 Quiz 1 
Started  
Submitted  
Due Date  
Status  Completed 
Attempt Score  100 out of 100 points 
Time Elapsed  4 minutes 
Results Displayed  All Answers, Submitted Answers, Feedback, Incorrectly Answered Questions 

Question 1
You are interested in exploring the relationship between hours studying and test grades. Which of these statements would be her null hypothesis?Selected Answer: There is no relation between hours studying and grades on a test.Answers: Response Feedback: Correct. 
Question 2
Which of these statements would be your nondirectional alternative hypothesis?Selected Answer: There is a relation between hours studying and grades on a test.Answers: Response Feedback: Correct. 
Question 3
Which of these statements would be your directional hypothesis?Selected Answer: The more hours one studies, the higher their grades will be.Answers: Response Feedback: Correct. 
Question 4
What does it mean when you use a 0.05 level of significance (alpha level) to evaluate statistical results?Selected Answer: You are ensuring that there is no more than a 5% chance of a Type I error (false positive).Answers: Response Feedback: Correct. 
Question 5
True/False. You must know what level of measurement is being used in order to choose the appropriate statistical test to use for her analyses.Selected Answer: True
Answers: True
False
Response Feedback: Correct. 
Question 6
You ask learners to select their course section number for your survey. For example, (1) 101, (2) 102, (3) 103. What type of variable is course section in this example?Selected Answer: NominalAnswers: Response Feedback: Correct. 
Question 7
If you ask them to state how much money they made last year what type of variable would that be?Selected Answer: Continuous, ratioAnswers: Response Feedback: Correct. 
Question 8
The scores on the last test given were 78, 100, 77, 78, 82, 12, 85, 86, 78. Which score would you predict is the outlier?Selected Answer: 12Answers: Response Feedback: Correct. 
Question 9
What measure of central tendency is most affected by outliers?Selected Answer: MeanAnswers: Response Feedback: Correct. 
Question 10
What number do you need to examine to evaluate variability in scores?Selected Answer: Standard deviationAnswers: Response Feedback: Correct.