Chapter 9: Categorical Association: Chi-Square Goodness of Fit Test
Chi-Square Goodness of Fit Test: Test Statistic and p-value
A human resource officer is evaluating the recruitment practices at her company and wants to determine whether applicants have a preference for one of #3# interview methods: a face-to-face meeting, a telephone call, or a video call.
To investigate this matter, a simple random sample of #189# applicants is selected and surveyed about their interview preferences. The table below summarizes the results of the survey:
The human resource officer plans on using a Chi-Square Goodness of Fit Test to determine whether applicants have a preference for any of the interview methods.
What are the proportions predicted by the null hypothesis of the proposed test? Give your answers as a fraction or as a decimal number rounded to #2# decimal places.
To investigate this matter, a simple random sample of #189# applicants is selected and surveyed about their interview preferences. The table below summarizes the results of the survey:
| Interview Method | Face-to-Face | Telephone | Video |
| Observed frequency | #67# | #72# | #50# |
The human resource officer plans on using a Chi-Square Goodness of Fit Test to determine whether applicants have a preference for any of the interview methods.
What are the proportions predicted by the null hypothesis of the proposed test? Give your answers as a fraction or as a decimal number rounded to #2# decimal places.
| Face-to-Face | Telephone | Video | |
| #H_0:# |
Unlock full access
Teacher access
Request a demo account. We will help you get started with our digital learning environment.
Student access
Is your university not a partner?
Get access to our courses via Pass Your Math independent of your university. See pricing and more.
Or visit omptest.org if jou are taking an OMPT exam.
Or visit omptest.org if jou are taking an OMPT exam.
