Eye color is determined by your genes. You took two random samples of people in your town. In one sample, 15 out of 30 had brown eyes. In your second sample, 12 out of 30 had brown eyes. Find the calculated -score used to compare proportions and interpret it. Use a confidence level of 95%. For your convenience, the formula is Confidence Level Critical -score 90% 5% 1.645 95% 2.5% 1.96 99% 0.5% 2.576 The calculated -score is 0.78, which is not greater than the critical value of 1.645, so we fail to reject the null hypothesis. The calculated -score is 0.78, which is not greater than the critical value of 1.645, so we reject the null hypothesis. The calculated -score is 0.78 which is not greater than the critical value of 1.96, so we fail to reject the null hypothesis. The calculated -score is 0.78, which is not greater than the critical value of 1.96, so we reject the null hypothesis