Use the sample data and confidence level given below to complete parts (a) through (d). In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2549 subjects randomly selected from an online group involved with ears. 935 surveys were returned. Construct a 90% confidence interval for the proportion of returned surveys. E Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. 0.367 (Round to three decimal places as needed.) b) Identify the value of the margin of error E. (Round to three decimal places as needed.)

Use the sample data and confidence level given below to complete parts (a) through (d). In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2549 subjects randomly selected from an online group involved with ears. 935 surveys were returned. Construct a 90% confidence interval for the proportion of returned surveys. E Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. 0.367 (Round to three decimal places as needed.) b) Identify the value of the margin of error E. (Round to three decimal places as needed.)

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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