Question 7: Table-2: Category-Term Count Data If the aim is to check …

(The following comprehension is purely imaginary) The BA team is known for their clumsy QP setting. Hence, after every quiz the enrolled learners always raise concerns. These concerns can be grouped into five categories: “Category-1: Not a valid concern- No Correction”, “Category-2: Valid Concern-Minor Correction”, “Category-3: Valid Concern-Major Corrections”, “Catgeory-4: Valid Concern-Open Marks” and “Catgeory-5: Those who claim marks for their misconception”. From the past six terms (Jan-20 to Sep-21), data on the number of requests in each category is captured and presented in Table-2 below.  Given this information, answer the given sub-questions

Table-2: Category-Term Count Data

If the aim is to check if the counts of observations in each category is independent across terms and say the value for the computed test statistic is 19.61, then based on Figure-1 what can be concluded? (Choose all that is/are applicable)

Figure-1: Chi-Square Tabulated Values

Select all that apply.

1. A

   At a 95% confidence level, REJECT THE NULL and conclude that the categorical variables ARE INDEPENDENT

2. B

   At a 95% confidence level, REJECT THE NULL and conclude that the categorical variables ARE NOT INDEPENDENT

3. C

   At a 95% confidence level, DO NOT REJECT THE NULL and conclude that the categorical variables ARE INDEPENDENT

4. D

   At a 95% confidence level, DO NOT REJECT THE NULL and conclude that the categorical variables ARE NOT INDEPENDENT

5. E

   At a 50% confidence level, DO NOT REJECT THE NULL and conclude that the categorical variables ARE INDEPENDENT

6. F

   At a 50% confidence level, DO NOT REJECT THE NULL and conclude that the categorical variables ARE NOT INDEPENDENT

7. G

   At a 50% confidence level, REJECT THE NULL and conclude that the categorical variables ARE INDEPENDENT

8. H

   At a 50% confidence level, REJECT THE NULL and conclude that the categorical variables ARE NOT INDEPENDENT

9. I

   The p-value for the test is between 0.5 to 0.1 and more towards 0.1

10. J

    The p-value for the test is between 0.5 to 0.1 and more towards 0.5

11. K

    The p-value for the test is between 0.95 to 0.9 and more towards 0.9

12. L

    The p-value for the test is between 0.95 to 0.9 and more towards 0.95

13. M

    More information is required to compute the p-value

14. N

    A Typical Category-5 answer: As this was not covered in the course, it should be given open marks. (Note: This is not a correct answer so don’t choose it. You will not be awarded marks if you choose and then try to claim marks through discourse)