Constructing confidence Intervals - given the sample mean and the sample standard deviation, use this information to construct the 90% and 95 % confidence interval for the population mean, which interval is wider?
Stock Prices From a random sample of 36 days in recent year, the closing stock prices for Hasbro had a mean of $19.31 and a standard deviation of $2.37?
Question: Which is wider? Please show the steps to help me understand to anwer the next question on my own.