# RESEARCH METHODOLOGY

## STATISTICAL TECHNIQUES AND TOOLS

### CHI SQUARE

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A chi-square test for homogeneity was conducted to investigate whether the four high schools in a school district have different absentee rates for each of four grade levels. The chi-square test statistic andp-value of the test were 19.02 and 0.025, respectively. Which of the following is the correct interpretation of the p-value in the context of the test?
 A Assuming that each high school has the same absentee rate for each grade level, there is a 2.5 percent chance of finding a test statistic 19.02 or smaller. B Assuming that each high school has the same absentee rate for each grade level, there is a 2.5 percent chance of finding a test statistic 19.02 or larger. C Assuming that each high school has a different absentee rate for each grade level, there is a 2.5 percent chance of finding a test statistic 19.02 or larger. D There is a 2.5 percent chance that the absentee rate for each grade level at the four schools is the same. E There is a 2.5 percent chance that the absentee rate for each grade level at the four schools is different.
Explanation:

Detailed explanation-1: -A chi-square test is a statistical test used to compare observed results with expected results. The purpose of this test is to determine if a difference between observed data and expected data is due to chance, or if it is due to a relationship between the variables you are studying.

Detailed explanation-2: -The Chi-Square Test of Independence determines whether there is an association between categorical variables (i.e., whether the variables are independent or related).

There is 1 question to complete.