Two Population Proportion Inference

Data Summary

Counts: CLASS by TYPE

- Sport Others Total
Domestic 2 33 35
Import 7 40 47

Percentages: CLASS by TYPE

- Sport Others
Domestic 5.714286 94.28571
Import 14.89362 85.10638

Confidence Interval for Difference of Two Population Proportions

Success = Sport
Population 1 = Domestic, Population 2 = Import
Sample Size: Domestic = 35, Import = 47
Number of Successes: Domestic = 2, Import = 7
Proportion of Successes: Domestic = 0.05714, Import = 0.1489
Confidence level = 95%

Method Midpoint Std Error Lower CL Upper CL Width
Large Sample z -0.0917933 0.0650865 -0.219361 0.0357739 0.255135
Bootstrap (Percentile) -0.0881459 0.064403 -0.212766 0.0364742 0.24924
Wilson-Score -0.0991226 0.0650865 -0.240883 0.0426377 0.283521

Bootstrap Confidence Interval Graph: CLASS

The title of the graph is  Bootstrap Distribution of Difference of Sample Proportions  ,  The graph shows the distribution of   Proportion Difference: (Domestic - Import)  ,  hat(p)[1] - hat(p)[2] == -0.091793 , Percentile Confidence Limits: (-0.213, 0.036) , Number of Replications = 10000 , Seed = 100