7) In a random sample of 500 LBCC students, 324 stated that they use a laptop to access their online content. You are going to construct a 90% confidence interval to estimate the proportion of all LBCC students that use a laptop to access their online content.

a. (8 points) Determine the sample proportion, p, and the margin of error, , for a 90% confidence interval. Round answers to 3 decimal places.

b. (8 points) Find the confidence interval in the form ,(p-E,p+E), and interpret what it means in the context of the scenario.