Final answer:
The correct answer is option e, which is both b and c. If the calculated Chi-square value is greater than the critical (table) Chi-square value, it means that the test statistic falls in the critical region and we can reject the null hypothesis. This indicates that there is a significant difference between the observed and expected values, suggesting that there is a difference between two means.
Step-by-step explanation:
The correct answer is option e, which is both b and c. If the calculated Chi-square value is greater than the critical (table) Chi-square value, it means that the test statistic falls in the critical region and we can reject the null hypothesis. This indicates that there is a significant difference between the observed and expected values, suggesting that there is a difference between two means.