One Sample Proportion Calculator: Measuring Usability

Quantitative Usability, Statistics & Six Sigma by Jeff Sauro

One Sample Proportion Calculator
by Jeff Sauro | May 30, 2008 :: RSS

Use this calculator to generate both a one-sample confidence interval and to test against a critera or benchmark.

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January 8, 2010 | Bert wrote:

This page could use some explanation.

June 11, 2008 | John Romadka wrote:

Sorry, I meant to "ask" if you could state results in a little more client friendly way like: "You can report that: Based on your target goal of X%, we can be Y% certain that the completion rate (of the that user group or population) is >Z%.

June 11, 2008 | John Romadka wrote:

"You can report that: Based on your target goal of X%, we can be Y% certain that the completion rate (of the that user group or population) is >Z%.

June 11, 2008 | JohnRomadka wrote:

I didn't initially get where/what (in the results text) the observed proportion= "x" was. Meaning, if 5 of 10, it would have said "0.5". Could it also say in parens (50%)?

June 11, 2008 | John Romadka wrote:

I'm not sure what the "Is Greater than" is for, or if/when I should change it.

June 11, 2008 | John Romadka wrote:

Is "Test Proportion" the same thing as "Acceptable Minimum Completion Rate". If so, that might make more sense (to non-statistically minded folks).

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# Passed	Total Tested		Test Proportion

Poor										Excellent
0	1	2	3	4	5	6	7	8	9	10

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