Internet service: An Internet service provider sampled 542 customers and found that 66 of them experienced an interruption in high-speed service during the previous month. Part: $0 / 3$ Part 1 of 3 (a) Find a point estimate for the population of all customers who experienced an interruption. Round the answer to at least three decimal places. The point estimate for the population proportion of all customers who experienced an interruption is

Step 1 ：Calculate the point estimate for the population proportion of all customers who experienced an interruption by dividing the number of customers who experienced an interruption by the total number of customers sampled. The formula is \(\frac{66}{542}\).

Step 2 ：Compute the value to get \(0.12177\).

Step 3 ：Round the result to three decimal places to get \(0.122\).

Step 4 ：\(\boxed{0.122}\) is the point estimate for the population proportion of all customers who experienced an interruption.