Stоre mаnаger оf а retail stоre collects information about people who use the store's mobile app to find discounts while they are shopping. Based on his survey, a 90% confidence interval for the true proportion of customers who use the app while they are shopping is from 0.54 to 0.58. What is the 90% confidence interval for the true proportion of those who DO NOT use the mobile app to find discounts while they are shopping.