the following four research questions, which ones are appropriate for the chi-sq
ID: 3305331 • Letter: T
Question
the following four research questions, which ones are appropriate for the chi-square test? A. What is the difference between the average scores of two math classes? B. What is the difference between the number of children who passed the math test in class 1 and the number of children who passed the math test in class 2? C. How many cars passed the CRASH test this year versus last year? D. How fast can a soccer player run 100 yards compared with a football player? Which is correct and why? Please expalin.
Explanation / Answer
A. What is the difference between the average scores of two math classes?
This is not appropriate for chi square test as the population (the two math classes) is different.
B. What is the difference between the number of children who passed the math test in class 1 and the number of children who passed the math test in class 2?
This is appropriate for chi square test as the population (the children) is the same and there are two variables (passing in the two subjects).
C. How many cars passed the CRASH test this year versus last year?
This is appropriate for chi-square test as the population(cars) is same and two variables (CRASH test over the years) might influence each other.
D. How fast can a soccer player run 100 yards compared with a football player? Which is correct and why?
This is appropriate for chi-square test as the population is same (runners of 100 yards) and the test can be used to determine whether the game the runner plays influences his speed.
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