STAT 200 PSU Quiz 10

STAT 200 PSU Quiz 10

1.

What is the primary purpose of doing a chi-square test? To determine if there is a significant relationship between

[removed]A) two quantitative variables 
[removed]B) two categorical variables 
[removed]C) two continuous variables 
[removed]D) a qualitative variable and quantitative variable 

Feedback: A chi-square test is used to analyze categorical (or qualitative) variables with the primary purpose to discover if a relationship exists between the variables.

2.

Which of the following is the BEST statement of the alternative hypothesis for conducting a Chi-Square analysis?

[removed]A) The variables are NOT statistically related in the population 
[removed]B) The variables ARE statistically related in the population 
[removed]C) The variables are NOT statistically related in the sample 
[removed]D) The variables ARE statistically related in the sample 

Feedback: The null hypothesis is statement that says no relationship exists between the variables in the population. Remember that when conducting a statistical test we use a sample to make an inference to a population.