Measuring Usability: Quantitative Usability, Statistics and Six-Sigma

Pages

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

What's the 1.5σ Shift and Does it Apply to Software Usability? ( 92 )
Conventional six sigma commonly adds a 1.5 sigma buffer to account for the shifting of a process over time. Does this make sense for software usability?

Questions

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

A newspaper finds that the mean number of typographical errors per page is five. Find the probabilit. . . ( 4 )

During the next hour, five customer arrivals are expected. What is the probability that more than fi. . . ( 4 )