QuestionInternet service: An Internet service provider sampled 538 customers and found that 78 of them experienced an interruption in high-speed service during the previous month.
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 0.145 .
Part: $1 / 3$
Part 2 of 3 (b) Construct an $80 \%$ confidence interval for the proportion of all customers who experienced an interruption. Round the answer to at least three decimal places.
An $80 \%$ confidence interval for the proportion of all customers who experienced an interruption is $\square$ $<p<$ $\square$