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Measuring Usability Homepage
Quantitative Usability, Statistics & Six Sigma by Jeff Sauro

Tags

Tag: Binomial Probability

Related Tags

Tag Name #
UI Problems 273
Sample Size 240
Calculator 157
binomial 128
Users Needed 99

Pages

The following pages have the tag Binomial Probability associated with them. The number of users that have also tagged the page ' Binomial Probability ' is in parenthesis.

Sample Size Calculator for Discovering Problems in a User Interface ( 153 )
Use this calculator to determine the number of users you'd need to test given the probability of detecting a problem. If the probability of detecting the problem is unknown, this calculator also allows you to estimate the problem occurrence (p) from sample data.

Deriving a Problem Discovery Sample Size ( 126 )
Side-bar to The Risks of Discounted Qualitative Studies:Shows the history and computation of deriving a sample size for discovering problems in an interface.

Questions

The following questions have the tag Binomial Probability associated with them. The number of users that have also tagged the question ' Binomial Probability ' is in parenthesis.

In a survey of adults, 68% thought that DNA test for identifying an individual were very reliable. Y. . . ( 4 )

Dear Stats Person, Here is my question. If a person were to guess a number from 1-10, the chance. . . ( 3 )

When you calculate CIs for time on task, I notice that you use the critical value from the t-distrib. . . ( 4 )

In Dallas, some fire trucks were painted yellow (instead of red) to heighten their visibility. Durin. . . ( 4 )

in a random sample of 200 person of a town 120 are found to the tea drinker.In a random sample of 50. . . ( 3 )

A surgical technique is performed on eight patients. You are told that there is an 80% chance of su. . . ( 4 )

A doctor knows from experience that 20% of the patients to whom he gives a high blood pressure drug . . . ( 4 )

A machine cuts circular filters from large rolls of material. If 7.3% of the filters fail to meet sp. . . ( 4 )

in a study of 11000 car crashes it was found that 5720 of them occurred within 5 miles of home. use . . . ( 4 )

The Web-based company Oh Baby! Gifts has a goal of processing 95 percent of its orders on the same d. . . ( 5 )

A classical experiment in extrasensory perception (ESP) consists of asking a subject to tell, withou. . . ( 5 )

A local bakery determines that the probability of a customer ordering a blueberry muffin is 50%. 5 . . . ( 5 )

Suppose that in NY State, 35% of voters are Democrats, 30% are Republicans, and 11% are independent.. . . ( 168 )