IE408 HW2. User Data Analysis
Expected learning objectives:
Questions.
| Question 1: What is your age?
A. Under 15 years old B. 15-25 years old C. 25-50 years old D. over 50 years old
Question 2. Have you used this application before? A. Yes B. No
Question 3. What type of food do you prefer in the morning? A. Bread B. Pancake C. Yogurt D. Eggs |
Figure 1. Part of the questionnaire
| Education Level | Row Total | ||||
| High School | Bachelor’s | Master’s | Ph.D. | ||
| Female | 60 | 54 | 46 | 41 | 201 |
| Male | 40 | 44 | 53 | 57 | 194 |
| Column Total | 100 | 98 | 99 | 98 | 395 |
Are gender and education level dependent at 5% level of significance (alpha=0.05)? Please show all the steps in calculation and interpret the results (including whether to accept or reject the null hypothesis).
1 = very dissatisfied, 2= moderately dissatisfied, 3= slightly dissatisfied,
4= neutral, 5= slightly satisfied, 6= moderately satisfied, 7= very satisfied
The scale scores of both questions are shown in the table below.
| Employee ID | Short-term Health | Long-term Health |
| 1 | 7 | 6 |
| 2 | 2 | 5 |
| 3 | 6 | 6 |
| 4 | 1 | 4 |
| 5 | 3 | 5 |
| 6 | 5 | 6 |
| 7 | 4 | 5 |
Is employee satisfaction of the company’s long-term and short-term health aligned? Please show all the steps in calculation and interpret the results (including whether to accept or reject the null hypothesis). (Hint: critical value for rs=0.714).
| Design of Products | A | B | C |
| Designer 1 | 1 | 2 | 3 |
| Designer 2 | 3 | 1 | 2 |
What is the degree of ranking concordance between these designers? Please show all the steps in calculation and interpret the results.
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