Instructions: Use the Chi-square test in the following problem. Show complete steps (Refer to the photo below for the steps).   1. A sample of 500 college students participated in a study designed to evaluate the level of college students' knowledge of a certain group of common diseases. The following table shows the students classified by major field of study and level of knowledge of the group of diseases:   Knowledge of Diseases Major Good Poor Total Premedical Other 31 19 91 359 122 378 Total 50 450 500 Do these data suggest that there is a relationship between knowledge of the group of diseases and the major field of study of the college students from which the present sample was drawn? Let alpha = 0.05

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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[1] Instructions: Use the Chi-square test in the following problem. Show complete steps (Refer to the photo below for the steps).

 

1. A sample of 500 college students participated in a study designed to evaluate the level of college students' knowledge of a certain group of common diseases. The following table shows the students classified by major field of study and level of knowledge of the group of diseases:

  Knowledge of Diseases
Major Good Poor Total

Premedical

Other

31

19

91

359

122

378

Total 50 450 500

Do these data suggest that there is a relationship between knowledge of the group of diseases and the major field of study of the college students from which the present sample was drawn? Let alpha = 0.05

Step 1:
Ho: There is no association between the job classification of employees
and their selected pension plan.
Ha: There is an association between the job classification of the
employees.
Step 2:
a = 0.05, df = (3 rows - 1) (3 columns - 1), df = 4
Step 3:
Critical value: + 9. 49
Step 4:
Compute the x
(0-E)
X =
Where:
O- observed value
E- expected value
Row total (Column total)
Expected frequency =
Grand total
Step 5:
Decision
conp 168.09 > x 9.49, reject Ho and accept Ha
Since x
Step 6:
Conclusion: Job Classification is associated to the pension plan
preference of employees
Transcribed Image Text:Step 1: Ho: There is no association between the job classification of employees and their selected pension plan. Ha: There is an association between the job classification of the employees. Step 2: a = 0.05, df = (3 rows - 1) (3 columns - 1), df = 4 Step 3: Critical value: + 9. 49 Step 4: Compute the x (0-E) X = Where: O- observed value E- expected value Row total (Column total) Expected frequency = Grand total Step 5: Decision conp 168.09 > x 9.49, reject Ho and accept Ha Since x Step 6: Conclusion: Job Classification is associated to the pension plan preference of employees
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