Michelle, a registered nurse at a doctor's office, believes the proportion of patients who use antiseptics to treat cuts is changing. She would like to test the claim that the proportion of patients who use antiseptics to treat cuts is different than 50 % . Using the computed test statistic of 0.90 and the critical values of 1.96 and 1.96 , is there enough evidence for the nurse to reject the null hypothesis? Use the graph below to interpret the critical value. First select the appropriate test type (left-, right-, or two- tailed), then plot the points along the x-axis (for the critical value and test statistic), and use them to choose the appropriate interpretation