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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

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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 2418 subjects randomly selected from an online group involved with ears. 988 surveys were returned. Construct a 99% 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. E =] (Round to three decimal places as needed.) c) Construct the confidence interval.

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