A researcher selects a sample of 100 people to investigate the relationship between gender (male/female)and registering to vote.The sample consists of 40 females,of whom 30 are registered voters,and 60 males,of whom 40 are registered voters.If these data are used for a chi-square test for independence,what is the expected frequency for registered females?
A)12
B)28
C)40
D)42

Question

A researcher selects a sample of 100 people to investigate the relationship between gender (male/female)and registering to vote.The sample consists of 40 females,of whom 30 are registered voters,and 60 males,of whom 40 are registered voters.If these data are used for a chi-square test for independence,what is the expected frequency for registered females?
A)​12
B)​28
C)​40
D)​42

Quizplus · Accepted Answer

The expected frequency for registered females is calculated by multiplying the total number of females (40) by the proportion of registered voters in the entire sample (70/100), which equals 28.

A Researcher Selects a Sample of 100 People to Investigate