A poll found that people from the north now have relatively warm feelings toward people from the south. A poll, conducted by telephone among a random sample of 747 adults, found that 605 of those sampled consider the two regions friends. The margin of error for the poll was plus or minus 2.8 percentage points (for a 0.95 confidence level). Use this information to obtain a 95% confidence interval for the percentage of all northerners who consider the two regions friends. The 95% confidence interval is from% to %. (Type an integer or a decimal rounded to one decimal place as needed.)

A poll found that people from the north now have relatively warm feelings toward people from the south. A poll, conducted by telephone among a random sample of 747 adults, found that 605 of those sampled consider the two regions friends. The margin of error for the poll was plus or minus 2.8 percentage points (for a 0.95 confidence level). Use this information to obtain a 95% confidence interval for the percentage of all northerners who consider the two regions friends. The 95% confidence interval is from% to %. (Type an integer or a decimal rounded to one decimal place as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 8SGR

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