COHP 350 Quiz 1 Study Set Questions And Answers
What is the difference between Descriptive and Inferential Statistics? Give an example for each. ANS Descriptive: Organizes and summarizes data. i.e. mean, mode, pie chart
Inferential: Drawing conclusions based upon the data. i.e. probability, hy...
what is the difference between descriptive and inf
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COHP 350 Quiz 1 Study Set Questions And Answers
What is the difference between Descriptive and Inferential Statistics? Give an example for each. ANS
Descriptive: Organizes and summarizes data. i.e. mean, mode, pie chart
Inferential: Drawing conclusions based upon the data. i.e. probability, hypotheses testing, confidence levels.
Identify the sample and the population of the following: A cardiologist in Grand Rapids is interested in the mean
recovery time of her patients who have had bypass procedures. ANS Sample = patients of cardiologist in Grand
Rapids who have had bypass procedures
Population = patients of cardiologist in Grand Rapids
Quantitative discrete, quantitative continuous or qualitative AND why?
Percent of body fat. ANS i.e. 19.8%
Quantitative continuous
Percent can involve decimals; not just a whole number.
Quantitative discrete, quantitative continuous or qualitative AND why?
Favorite brand of shampoo. ANS Qualitative
Not numeric; descriptive
Parameter or statistic AND why?
A survey was sent to 500 dentists regarding number of root canals performed annually. ANS Statistic; from a
sample of dentists, not all dentists
Parameter or statistic AND why?
College students in the United States were surveyed regarding hours of sleep per night. ANS Parameter; from a
population of all college students in the United States
Independent or dependent variables AND why?
Blood type and weight of donor. ANS Independent
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