chi square test

Question 1

What is the purpose of the Chi-Squared test? (1)

Answer 1

Used to determine whether the difference between observed and expected frequencies is significant

Question 2

In what situations is the Chi-Squared test used? (2)

Answer 2

It is used when dealing with counts of things or frequencies that can be placed into categories,

Like flower colour or health conditions

Question 3

What is the formula for the Chi-Squared statistic? (3)

Answer 3

O represents the observed results,

E represents the expected results

Question 4

What does the Chi-Squared test compare? (2)

Answer 4

Compares the observed frequencies with the expected frequencies,

To determine if the difference is significant