Using sample data it was determined: With 95% confidence, the proportion of US teens that have smartphones is between 34
Posted: Sun Jul 10, 2022 10:22 am
Using sample data it was determined: With 95% confidence, the proportion of US teens that have smartphones is between 34.2% and 40.2%. Write the confidence interval, use decimals in your answer. What is the sample proportion that the interval estimate is based on? What is the margin of error?