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 hemispheric dominance, an Internet survey was e-mailed to 2424 subjects randomly selected from an online group involved with ears, 1154 surveys were returned. Construct a 95% confidence interval for the proportion of returned surveys. Cick 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. (Round to three decimal places as needed) d) Write a statement that correctly interprets the confidence interval. Choose the correct answer below O A O B. ° C. 0 D. One has 95% confidence that the interval from the lower bound to the upper bound actually does contain the true value of the population proportion. 95% of sample proportions will fall between the lower bound and the upper bound. There is a 95% chance that the true value of the population proportion will fall between the lower bound and the upper bound. One has 95% confidence that the sample proportion is equal to the population proportion

Answer 1

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