February 24, 2017

Homework Help: statystics

Posted by Adela on Thursday, April 15, 2010 at 11:05pm.

: Human Resources took a survey and found that the average commute time one way is 25.4 minutes. However one of the executives feels that the commute is less. He randomly selects 25 commuters and finds that the average is 22.1 minutes with a standard deviation of 5.3 minutes. At Ą=0.10, is he correct?

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