Question

1)What can we say about the value of χ² if the sample distribution matches the null distribution exactly?

Group of answer choices

none of the above; we need to know the observed and expected values.

the χ2 value is less than 0

the χ2 value is greater than 0

the χ2 value is 0

2)

A researcher surveys a random sample of 750 college students about their political views. The researcher’s survey contains questions about the following variables:

• Age
• Political Affiliation (Democrat / Republican / Other)
• Annual income
• number of hours worked per week
• Residential status (on-campus / off-campus)

The researcher will conduct a chi-square test of independence. Which pair of variables can the researcher use?

Group of answer choices

political affiliation and residential status

age and annual income

residential status and number of hours worked per week

annual income and number of hours worked per week

Answer 1