Name: Trần Quỳnh Nhi ID: 31211023176Class: DH47IBC02Business Analytics – Midterm ExamData02.savEx 1: Calculate MEAN, MOD, MEDIAN of-Number of pets owned-Number of cats owned-Number of do
Trang 1UNIVERSITY OF ECONOMIC HO CHI MINH CITY
Trang 2Name: Trần Quỳnh Nhi
ID: 31211023176
Class: DH47IBC02
Business Analytics – Midterm Exam
Data02.sav
Ex 1: Calculate MEAN, MOD, MEDIAN of
- Number of pets owned
- Number of cats owned
- Number of dogs owned
- Number of birds owned
- Number of reptiles owned
- Number of small animals owned
- Number of saltwater fish owned
- Number of freshwater fish owned
Ex 2: Liệu sự khác biệt về tình trạng hôn nhân của khách hàng có ảnh hưởng đến số lượng từng loại vật nuôi ở trên không?
1 Hypothesis
- Number of pets owned:
o H0: : There is no significant difference in terms of number of pets owned between people who are married and people who are not married.
o H1: : There is a significant difference in terms of number of pets owned between people who are married and people who are not married.
- Number of cats owned:
o H0: : There is no significant difference in terms of number of cats owned between people who are married and people who are not married
Trang 3H1: : There is a significant difference in terms of number of cats owned between people who are married and people who are not married.
- Number of dogs owned:
o H0: : There is no significant difference in terms of number of dogs owned between people who are married and people who are not married
o H1: : There is a significant difference in terms of number of reptiles owned between people who are married and people who are not married.
- Number of birds owned
o H0: : There is no significant difference in terms of number of birds owned between people who are married and people who are not married
o H1: : There is a significant difference in terms of number of birds owned between people who are married and people who are not married.
- Number of reptiles owned
o H0: : There is no significant difference in terms of number of reptiles owned between people who are married and people who are not married
o H1: : There is a significant difference in terms of number of reptiles owned between people who are married and people who are not married.
- Number of small animals owned
o H0: : There is no significant difference in terms of number of small animals owned between people who are married and people who are not married
o H1: : There is a significant difference in terms of number of small animals owned between people who are married and people who are not married.
- Number of saltwater fish owned
o H0 : There is no significant difference in terms of number of saltwater fish owned between people who are married and people who are not married.
o H1: : There is a significant difference in terms of number of saltwater fish owned between people who are married and people who are not married.
- Number of freshwater fish owned
o H0: : There is no significant difference in terms of number of freshfish owned between people who are married and people who are not married
o H1: : There is a significant difference in terms of number of freshfish owned between people who are married and people who are not married.
2 Independent Sample T – Test:
Trang 43 Describe number of each groups:
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Trang 54 Assumption of homogeneity
- Number of pets owned
Flevene’s test = 0.886
P levene’s test = 0.347 > 0.05
=> Equal variance is assumed
- Number of cats owned
Flevene’s test = 0.708
P levene’s test = 0.400> 0.05
=> Equal variance is assumed
- Number of dogs owned
Flevene’s test = 0.423
Trang 6P levene’s test = 0.515> 0.05
=> Equal variance is assumed
- Number of birds owned
Flevene’s test = 8.346
P levene’s test = 0.004 < 0.05
=> Equal variance is NOT assumed
- Number of reptiles owned
Flevene’s test = 0.142
P levene’s test = 0.706 > 0.05
=> Equal variance is assumed
- Number of small animals owned
Flevene’s test = 0.956
P levene’s test = 0.328> 0.05
=> Equal variance is assumed
- Number of saltwater fish owned
Flevene’s test = 2.633
P levene’s test = 0.105> 0.05
=> Equal variance is assumed
- Number of freshwater fish owned
F = 0.416
Trang 7P levene’s test = 0.519> 0.05
=> Equal variance is assumed
5 Record the T – test
- Number of pets owned
Trang 9Ex 4: Liệu số nợ thẻ tín dụng (Credit card debt in thousands) của khách hàng có nhỏ hơn 2000$ không?
Trang 18Frequency Percent Valid Percent Cumulative
Percent
Trang 89From the Frequency table, Credit card debt in thousands is lower than $2000
Ex 5: Tính tương quan và bình luận mối tương quan giữa Home ownership và Level of education
Conclusion:
- 0.4 < |r| < 0.7 : moderate correlation
- p < 0.05 : Correlation is significant at 0.05 level
Trang 90- Home ownership have a significant positive correlation with Level of education