Predicting Employee Churn: A Data-Driven Approach Project Presentation
Chi square 1 arul
1. 1.
Heart attack
Yes No Total
Exercise Yes 10 140 150
No 35 220 255
Total 45 360 405
Case Processing Summary
Cases
Valid Missing Total
N Percent N Percent N Percent
Exercise * Attack 405 100.0% 0 .0% 405 100.0%
Chi-Square Tests
Value df
Asymp. Sig. (2-
sided)
Exact Sig. (2-
sided)
Exact Sig. (1-
sided)
Pearson Chi-Square 4.765a
1 .029
Continuity Correctionb
4.077 1 .043
Likelihood Ratio 5.101 1 .024
Fisher's Exact Test .033 .019
Linear-by-Linear Association 4.753 1 .029
N of Valid Cases 405
a. 0 cells (.0%) have expected count less than 5. The minimum expected countis 16.67.
b. Computed onlyfor a 2x2 table
Symmetric Measures
Value Approx. Sig.
Nominal byNominal Phi -.108 .029
Cramer's V .108 .029
N of Valid Cases 405
2. HYPOTHESIS
Ho = There is no relationship between exercise and heart attack.
H1 = There is a relationship between exercise and heart attack.
MAKE DECISION
p<0.05, Ho rejected
APA:
There is a significant relationship between exercise and heart attack, χ 2 (1, N =405) = 4.765, p<
.05, Cramer’s V = .108
3. 2
Overweight
Yes No Total
Breastfed Yes 16 84 100
No 56 144 200
Total 72 228 300
Case Processing Summary
Cases
Valid Missing Total
N Percent N Percent N Percent
Breastfed * overweight 300 100.0% 0 .0% 300 100.0%
Chi-Square Tests
Value df
Asymp. Sig. (2-
sided)
Exact Sig. (2-
sided)
Exact Sig. (1-
sided)
Pearson Chi-Square 5.263a
1 .022
Continuity Correctionb
4.626 1 .031
Likelihood Ratio 5.533 1 .019
Fisher's Exact Test .022 .014
Linear-by-Linear Association 5.246 1 .022
N of Valid Cases 300
a. 0 cells (.0%) have expected count less than 5. The minimum expected countis 24.00.
b. Computed onlyfor a 2x2 table
Symmetric Measures
Value Approx. Sig.
Nominal byNominal Phi -.132 .022
Cramer's V .132 .022
N of Valid Cases 300
4. HYPOTHESIS
Ho = There is no relationship between breastfed and overweight.
H1 = There is a relationship between breastfed and overweight.
MAKE DECISION
p<0.05, Ho rejected
APA:
There is a significant relationship between breastfed and overweight, χ 2 (1, N =300) = 5.263, p<
.05, Cramer’s V = .132