Confidence level Critical value 0.90 2* = 1.645 0.95 2* = 1.960 0.99 2* = 2.576 377222.2338710.qx3zqy7 Jump to level 1 In a poll of 1000 randomly selected voters in a local election, 647 voters were in favor of fire department bond measures. What is the sample proportion p? Ex: 0.1232 What is the margin of error m for the 95% confidence level? Ex: 0. 123 1 2 Check Next Feedback CHALLENGE ACTIVITY 7.2.2: Confidence intervals for population proportions (two-tailed). 377222.2338710.qx3zay7 Start Understanding student demographics is important for a college in deciding what prog benefit students. A sample of students is taken to determine what proportion of stude