Sample Size determination question

In summary, sample size determination is the process of determining the number of individuals or observations needed to represent a population in a scientific study. It is important to have an appropriate sample size in order to obtain accurate and reliable results. Sample size is determined based on factors such as statistical significance, effect size, and variability. There is no standard sample size for all studies as it varies depending on the research question, type of study, and population. If the sample size is too small, the results may not be representative and can lead to inaccurate conclusions. It is possible to adjust the sample size during a study, but this should be done carefully as it can affect the statistical power and validity of the study.
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I have for class a research design of Nurse Practitioners, who have had clinical experience of 2 years or more with those, who have less than 1 year to determine if there is a difference in patient outcomes with those, who have diabetes and those, who have hypertension. IF I use an alpha level of 0.5 and a power of .8, how do I determine the sample size?
 
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