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Quantitative Usability, Statistics & Six Sigma by Jeff Sauro

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

Use the given degree of confidence and sample data to construct a confidence interval for the popula. . . ( 4 )

Calculate a 98% confidence interval for the following data 15.7,15.7,15.5,15.2,15.2,15.1,15.3.. . . ( 4 )

Find a confidence interval for the mean assuming that each sample is from a normal population. Mean . . . ( 5 )

Assume that the heights of 5 year old boys are normally distribued with a mean of 100cm and a standa. . . ( 5 )

Do you have any hints how I can figure out critical values at the significance level? Can you figur. . . ( 3 )

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

How would I figure out a 90% and 95% confidence interval for the below informaion? What would be th. . . ( 5 )

A random sample of 25 households finds that an average of 2.3 people reside in each house (the stand. . . ( 5 )