Use this test to determine if two values from the ACS are significantly different.
You do this if you want to compare the same characteristic at two different periods in time or want to compare the same characteristic for two different geographic areas.
Fill the estimated values in the left two cells and the corresponding margins of error in the right hand cells. Click on the "Test" button to see the result.
You will get an error message when you mix perceived percentages (values that end with a '%') with counts or when the program is not able to translate what you typed into a number.
Significantly different in this calculation means that the probability that the true values are different is more than 90%.
Not significantly different means that the estimated difference is not large enough to conclude that there is a difference in the real values.
In the calculations on this only results from 90% confidence level testing are presented. For other levels you have to calculate the difference and the margin of error yourself (you can do that below) and do the appropiate calculations.
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