Determine the critical values for the confidence interval for the population standard deviation from the given values. Round your answers to three decimal places. n = 13 and a = 0.1. Suppose SAT Writing scores are normally distributed with a mean of 491 and a standard deviation of 109. A university plans to admit students whose scores are in the top 30 %. What is the minimum score required for admission? Round your answer to the nearest whole number, if necessary.