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parts (a) through (d). In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2650 subjects randomly selected from an online group involved with ears. 1067 surveys were returned. Construct a 90% confidence interval for the proportion of returned surveys. Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.) b) Identify the value of the margin of error E. M

parts (a) through (d). In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2650 subjects randomly selected from an online group involved with ears. 1067 surveys were returned. Construct a 90% confidence interval for the proportion of returned surveys. Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.) b) Identify the value of the margin of error E. M

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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 2650 subjects randomly selected from an online group involved with ears. 1067 surveys were returned. Construct a 90% confidence interval for the proportion of returned surveys. [Click the icon to view a table of z scores.] c) Construct the confidence interval. \[ \Box \quad < \quad p \quad < \quad \Box \] (Round to three decimal places as needed.) d) Write a statement that correctly interprets the confidence interval. Choose the correct answer below.
Transcribed Image Text: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 2650 subjects randomly selected from an online group involved with ears. 1067 surveys were returned. Construct a 90% confidence interval for the proportion of returned surveys. [Click the icon to view a table of z scores.] c) Construct the confidence interval. \[ \Box \quad < \quad p \quad < \quad \Box \] (Round to three decimal places as needed.) d) Write a statement that correctly interprets the confidence interval. Choose the correct answer below.
**Sample Data and Confidence Interval Calculation** In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2,650 subjects randomly selected from an online group involved with ears. A total of 1,067 surveys were returned. The task is to construct a 90% confidence interval for the proportion of returned surveys. 1. **Z-score Table:** - Click the icon to view a table of z scores. 2. **Tasks:** a) **Estimate the Population Proportion (p):** - Find the best point estimate of the population proportion \( p \). - *Note:* Round to three decimal places as needed. b) **Margin of Error (E):** - Identify the value of the margin of error \( E \). - *Note:* Round as necessary based on the context of the data. To complete parts (a) through (d), use the sample data and specified confidence level, ensuring calculations are thorough and accurate for educational understanding.
Transcribed Image Text:**Sample Data and Confidence Interval Calculation** In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2,650 subjects randomly selected from an online group involved with ears. A total of 1,067 surveys were returned. The task is to construct a 90% confidence interval for the proportion of returned surveys. 1. **Z-score Table:** - Click the icon to view a table of z scores. 2. **Tasks:** a) **Estimate the Population Proportion (p):** - Find the best point estimate of the population proportion \( p \). - *Note:* Round to three decimal places as needed. b) **Margin of Error (E):** - Identify the value of the margin of error \( E \). - *Note:* Round as necessary based on the context of the data. To complete parts (a) through (d), use the sample data and specified confidence level, ensuring calculations are thorough and accurate for educational understanding.
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