During an independent research, 2500 randomly selected people were interviewed whether they visit their dentist for a regular dental checkup or not. Only 2000 gave a positive answer. Calculate a 90% two-sided confidence interval on the proportion of people who regularly have a dental checkup. Round your answers to three decimal places (e. g. 98.765).

What is the solution of sqrt x+2-15=-3

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field