Question: Use the sample data and confidence level given below to complete parts (a) through (d). In a study of cell phone use and brain

Use the sample data and confidence level given below to complete parts

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 2321 subjects randomly selected from an online group involved with ears. 1117 surveys were returned. Construct a 95% 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.)

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