_ Assumptions

This assignment refers to the Histogram shown on the left that depicts the distribution of a set of quiz scores. Q 1 requires application of learning from Module 9 combined with new learning from Module 10. Q’s  2-6 require your interpretation of the Histogram. 
 
1. Based only on the level of measurement (NOIR Scale) of the quiz scores, would the appropriate branch of statistics to analyze the scores be parametric or non-parametric? Explain.                                
2. Is the distribution of the Quiz 1 scores normal or skewed? Explain. 

3. If the distribution of quiz scores is skewed, is the direction of the skew positive or negative? Explain.
4. If quiz scores are normally distributed, would the appropriate branch of statistics used to analyze these data be parametric or non-parametric? Explain. 
5. If distribution of quiz scores is skewed, would the appropriate branch of statistics used to analyze these data be parametric or non-parametric? Explain. 
6. Provide a short summary statement of your Histogram findings. In other words, what is your overall interpretation of class performance on the quiz based on your analysis of the Histogram?           

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