Homework Help: statistics

Posted by Anonymous on Thursday, January 26, 2012 at 1:54am.

What is the alternative hypothesis for a null hypothesis stating that the average time a person keeps a cell phone is at most three years. Answer: Ha: mu > 3 State the null and alternative hypotheses for the following: You are investigating a complaint that "special delivery mail takes too much time" to be delivered.

statistics - PsyDAG, Friday, January 27, 2012 at 8:41pm
Ho: Delivery time ≤ expectations
Ha: Delivery time > expectations

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