Chi Square Test

Question 1

Which of the following statement is the correct null hypothesis?

• There are a relation between the schools and the grade of Mathematics.

• There are no relation between the schools and the grade of Mathematics.

• There are assosiation between the schools and the grade of Mathematics.

• The schools and grade of Mathematics ore not independent

Which of the following statement is the correct alternative hypothesis?

• There are a relation between the schools and the grade of Mathematics

• There are no relation between the schools and the grade of Mathematics.

• There are no assosiation between the schools and the grade of Mathematics.

• The schools and grade of Mathematics ore independent

What is the expected frequency for the school X and grade C?

• 18.333

• 25.667

• 21.667

• 30.333

What is the expected frequency for the school Y and grade A?

• 18.333

• 25.667

• 21.667

• 30.333

What is a number of the degree of freedom, v?

From table, what is the value of chi square test at 5% level of significance?

• v=2 and 0.1026

• v=2 and 5.991

• v=3 and 0.1026

• v=3 and 5.991

What is a number of the degree of freedom, v if there is no preference in the selection of flavour.

From table, what is the value of chi square test at 5% level of significance?

• v=3 and 7.815

• v=4 and 7.815

• v=3 and 0.3518

• v=4 and 0.3518

What is the correct formula for chi-squared statistics?

• Ei - Oi

• Oi - Ei

• Oi + Ei

• Ei + Oi

Find the value of test statistics

• 0.543

• 0.555

• 0.515

• 0.534

Which is the critical region for chi square test?

• 0

• 1 - c

• c

• x

Which statement of conclusion is correct?

• Since χ2 = 10.55 > 5.991, we do not reject Ho. There are no relation between the school and the grades of Mathematics.

• Since χ2  = 10.55 > 5.991, we reject Ho. There are no relation between the school and the grades of Mathematics

• Since χ2 = 10.55 > 5.991, we reject Ho. There are relation between the school and the grades of Mathematics

• Since χ2 = 10.55 > 5.991, we do reject Ho. There are relation between the school and the grades of Mathematics.