In a random sample of 500 employees, 300 said they would like the company to adopt a flexible scheduling policy, which would permit employees to decide when and how much they would work. Construct a...

In a random sample of 500  employees, 300 said they would like the company to adopt a flexible scheduling policy, which would permit employees to decide when and how much they would work.

Construct a 90% confidence interval to estimate the population proportion of clerical employees favouring the flexible scheduling policy. Explain briefly how the confidence interval should be interpreted.