Find the necessary confidence interval for the binomial proportion p. ( Round your answers to three decimal places.) A 90% confidence interval for p, based on a random sample of n = 400 observations from a binomial population with x = 355 successes, LA USE SALT Interpret the interval that you have constructed. O There is a 90% chance that an individual sample proportion will fall within the interval. O In repeated sampling, 10% of all intervals constructed in this manner will enclose the population proportion. O 90% of all sample proportions will fall within the interval. O There is a 10% chance that an individual sample proportion will fall within the interval. O In repeated sampling, 90% of all intervals constructed in this manner will enclose the population proportion. You may need to use the appropriate appendix table to answer this