Finding 98% confidence interval for the given data.

Create a 95% confidence interval for the given data.

The county health department has concerns about the chlorine level of 0.4% mg/mL at a local water park increasing to unsafe level. The water department tests the hypothesis that the local water park's chlorine proportions have remained the same. An independent agency, hired by the city, ran a test on a random sample size of 1000 and found the chlorine level at 0.5% mg/mL. Create a 95% confidence interval for the proportion of chlorine in the water.

o Based on the data, we are 95% confident the proportion of chlorine in the water is between 0.4% and 0.6%.

• Based on the data, we are 95% confident the proportion of chlorine in the water is between 0.102% and 0.898%.

• Based on the data, we are 95% confident the proportion of chlorine in the water is between 0.063% and 0.937%.

• Based on the data, we are 95% confident the proportion of chlorine in the water is between 0.009% and 0.891%.

• Based on the data, we are 95% confident the proportion of chlorine in the water is between 0.109% and 0.891%.