Measuring Usability: Quantitative Usability, Statistics and Six-Sigma

Pages

The following pages have the tag 2-sample t-test associated with them. The number of users that have also tagged the page ' 2-sample t-test ' is in parenthesis.

Z-Score to Percentile Calculator ( 84 )
Look up the area under the normal curve (1 or two-sided areas) from a standard score (Z-score).

Questions

The following questions have the tag 2-sample t-test associated with them. The number of users that have also tagged the question ' 2-sample t-test ' is in parenthesis.

Complete the following: a. Select a variable. Compare the mean of the variable for a sample of 30 . . . ( 4 )

A financial analyst wants to compare the turnover rates, I percent, for shares of oil-related stocks. . . ( 4 )

To test the hypothesis that students who finish an exam first get better grades, Professor Hardtack . . . ( 4 )

Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a. . . ( 5 )

You take a random sample of pizzas sold during a one hour period over the next week. Group 1 and Gr. . . ( 3 )

You are interested in whether men participate more than women in political activities, so you survey. . . ( 4 )