"A major retail chain uses survey data to estimate the mean age of customers. A 95% confidence interval for the mean age of all its customers is found to be (21.7, 46.5) using a sample size of 135"

True or False: If samples of size 135 were repeatedly take and 95% confidence intervals were calculated in this way (from each sample), then about 5% of the confidence intervals would not contain the true population mean.