The following study looks at a random sample of whether a person has tattoos and the presence of Hepatitis C in their bloodwork.  The results are given below.  Use a level of significance of 5% to test if there is a relationship between having tattoos and having Hepatitis C. Write a sentence summarizing your results.   Hepatitis C No Hepatitis C Total Tatoo 30 95 125 No Tatoo 25 350 375 Total 55 445 500

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.