RES 341 Week 5 DQ 1

RES 341 Week 5 DQ 1 - 1) Explain the difference between the...

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1) Explain the difference between the null hypothesis and the alternate hypothesis. How is the null hypothesis chosen? Explain. What is the importance of rejecting the null hypothesis? The null hypothesis is always the simpler hypothesis and is generally believed to be true. It is stated in terms of "no difference" (e.g. contains an = sign). Examples of a null hypothesis are: "There is no difference in mean weight between males and females" or "Patients' outcomes are no different with or or without the surgical procedure." The alternative hypothesis represents the result that the experiment would like to show. The alternative hypothesis can be stated in terms simple inequality ("Male and female weights are different"), or can be stated in terms of a result on one side or the other of the equals sign ("Females weigh less than males"). When the null hypothesis is rejected at a certain probability level α (typically 0.01 or 0.05), then we are sure, with 1-α certainty, that the null hypothesis is
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RES 341 Week 5 DQ 1 - 1) Explain the difference between the...

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