Student researchers at ISU recently implemented a blind taste test by taking a sample of N=30 ISU students. Researchers set up a table with two white cups: one containing Cola A and the other containing Cola B. Participants were encouraged to taste both colas, and then were asked to indicate which cola they preferred using the nominal scale (1 = Cola A, 2 = Cola B). Researchers also collected participants' demographic information. The researchers first want to understand whether there is a difference in preference between Cola Aand Cola B. Which of the following statement is NOT correct about this research?

We should use One-way Chi-squared test to understand whether there is a difference in preference between the two colas.

We cannot use t-test to understand whether there is a difference in preference between the two colas because we have the nominal scaled data.

We should use linear regression to understand to see if there is a relationship between the preference of colas and gender.

We should use Two-way Chi-squared test to see if there is a relationship between the preference of colas and gender.