4. In a survey of 2383 U.S. adults, 1073 think that there should be more government regulation of oil companies. a. Find the point estimate for the population proportion P of U.S. adults who think that there should be more government regulation ofoil companies. (2 points) b. Construct a 95% confidence interval for the population proportion. Interpret the results. [Use Algebra first then Tech next] (4 points) c. Find the minimum sample size needed to estimate the population proportion at the 99% confidence level in order to ensure that the estimate is accurate within 3% of the population proportion. N. B. Use the point estimate from part 4(3). (4 points) [Use Algebra first then Tech next]