Question

Due to the popularity of instant messaging and socialnetworking, informal elements such as emoticons (e.g., the symbol":)" to represent a smile) and abbreviations (e.g., "LOL" for"laughing out loud") have worked their way into teenagers' school writing assignments. A survey interviewed 900 randomly selected teenagers by telephone on their writing habits. Overall, 446 of the teenagers admitted using at least one informal element in school writing assignments. Based on the survey results, construct a 90% confidence interval for the proportion of all teenagers who have used at least one informal element in school writing assignments. Give a practical interpretation of the interval.

The 90% confidence interval is ( _____, _______ ). (Round to three decimal places as needed.

Answer #1

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 44 minutes ago

asked 55 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago