Micheale

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Member Since November 26, 2008

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Answered: Free statistics software

A toy manufacturerer wants to see how long on average a new toy captures childrens attention. He tests 20 children selected at random and finds that their mean attention span is 28 minutes with a ...

Posted 3 years ago

Answered: Free statistics software

Confidence interval for the population mean: Use of the t distribution A toy manufacturer wants to see how long, on average, a new toy captures children's attention. He tests children selected at ...

Posted 3 years ago

Answered: Free statistics software

Confidence interval for the population mean: Use of the t distribution A toy manufacturer wants to see how long, on average, a new toy captures children's attention. He tests children selected at ...