A group of students who are female is greater than 0.5. a sample of 120 students reveals that 76 are females. use the 5% leave of significance to test this claim.
You can use a one-sample proportional z-test for your data. (Test sample proportion = 76/120 or .63) Find the critical value in the appropriate table at .05 level of significance for a one-tailed test. Compare the test statistic you calculate to the critical value from the table. If the test statistic exceeds the critical value, reject the null. If the test statistic does not exceed the critical value, do not reject the null. You can draw your conclusions from there.
