week 4 DQ 2

Statistics
Tutor: None Selected Time limit: 1 Day

Why do null and alternative hypotheses have to be mutually exclusive? Provide an example

Jun 29th, 2015

Thank you for the opportunity to help you with your question!

The null and alternative hypothesis are mutually exclusive because the alternative hypothesis is really the replacement to the null hypothesis if the null hypothesis is not valid.

The null hypothesis states that a population parameter is equal to a value. The null hypothesis is often an  initial claim that researchers specify using previous research or

 knowledge.

The alternative hypothesis states that the population parameter is different than the value of the population parameter in the null hypothesis.  The alternative hypothesis is really the backup to the null hypothesis if the null hypothesis is invalid. Therefore, the two hypotheses need to be mutually exclusive. 


Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 29th, 2015

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Jun 29th, 2015
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