Question

1. The sample data for Chi-square test are called ______ ?

a. Expected frequencies

b. Observed frequencies

c. Expected proportions

d. Observed proportions

2. The chi-Square test statistic should not be used if _______?

a. fe > 5 for any cell

b. fe < 5 for any cell

c. fe = fo

d. None of the above

3. A nation-wide data indicated that 60% of students approved of the instructors grading policy, 30% disapproved and 10% had no opinion. The researcher plans to use a sample of n = 300 people to determine if their opinions have changed.

If Chi-square test is used to evaluate the data, what are the expected frequencies for the "disapproved category"     

a. 90

b. 60

c. 30

d. 180

Answer 1

The sample data for Chi-square test are called

b. Observed frequencies

2. The chi-Square test statistic should not be used if

b. fe < 5 for any cell

3. A nation-wide data indicated that 60% of students approved of the instructors grading policy, 30% disapproved and 10% had no opinion. The researcher plans to use a sample of n = 300 people to determine if their opinions have changed.

If Chi-square test is used to evaluate the data, what are the expected frequencies for the "disapproved category"  

30