Respond clearly and thoroughly, yet concisely, to each of the following questions. Be sure to justify your response, when appropriate. Provide an outline of the five-step hypothesis testing model in which you specify the significance of each step. Conclude with a paragraph describing why we use this model for testing our hypotheses; that is, identify and briefly discuss the significance of using this model overall.
Respond clearly and thoroughly, yet concisely, to each of the following questions. Be sure to justify your response, when appropriate.
Provide an outline of the five-step hypothesis testing model in which you specify the significance of each step. Conclude with a paragraph describing why we use this model for testing our hypotheses; that is, identify and briefly discuss the significance of using this model overall.
To find,
Outline of the five-step hypothesis tetsing model.
Answer:
Hypothesis testing is used for comparing two or more groups.
An outline of the five-step hypothesis tetsing model is:
1. Define null hypothesis
2. Define alternative hypothesis
3. Set the significance level
4. Calculate test statitics and p-value
5. Conclude the answer using results in above 4 steps.
1. Define null hypothesis
The null hypothesis (H0) is a statement of no effect, relationship, or difference between two or more groups or factors.
Null hypothesis is false case of claim in the problem.
Example:
There is no difference in intubation rates across ages 0 to 5 years.
2. Define alternative hypothesis
The alternative hypothesis (H1) is the statement that there is an effect or difference. This is usually the claim in the problem.
The alternative hypothesis can be one-sided or two-sided. We often use two-sided tests even when our true hypothesis is one-sided because it requires more evidence against the null hypothesis to accept the alternative hypothesis.
Example:
The intubation success rate differs with the age of the patient being treated (two-sided).
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