Chi-squared

Question 1

Function of Chi-squared

Answer 1

To compare how closely observed outcomes fit the expected outcomes

Question 2

Reason for choosing Chi-squared

Answer 2

Categorical data

Question 3

Chi-squared null hypothesis

Answer 3

There is no statistically significant difference between the observed and expected results

Question 4

Chi-squared results

Answer 4

If the chi-squared statistic EXCEEDS the critical value at p=0.05 we reject the null hypothesis. There is a statistically significant difference between the observed and expected results. There is less than 5% probably the results occurred due to chance

Question 5

Chi-squared degrees of freedom

Answer 5

Number of categories - 1