Use the sample data and confidence level given below to complete parts (a) through (d). In a study of cell phone use a
Posted: Sun Jul 10, 2022 10:11 am
Use the sample data and confidence level given below to completeparts (a) through (d).
In a study of cell phone use and brainhemispheric dominance, an Internet survey was e-mailedto
2366
subjects randomly selected from an online group involved withears.
1059
surveys were returned. Construct a
95%
confidence interval for the proportion of returned surveys.
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Part 1
a) Find the best point estimate of the population proportionp.
enter your response here
(Round to three decimal places as needed.)
Part 2
b) Identify the value of the margin of error E.
E=enter your response here
(Round to three decimal places as needed.)
Part 3
c) Construct the confidence interval.
enter your response here<p<enter your response here
(Round to three decimal places as needed.)
Part 4
d) Write a statement that correctly interprets the confidenceinterval. Choose the correct answer below.
A.There is a
95%
chance that the true value of the population proportion willfall between the lower bound and the upper bound.
B.One has
95%
confidence that the interval from the lower bound to the upperbound actually does contain the true value of the populationproportion.
C.
95%
of sample proportions will fall between the lower bound and theupper bound.
D.One has
95%
confidence that the sample proportion is equal to the populationproportion.
In a study of cell phone use and brainhemispheric dominance, an Internet survey was e-mailedto
2366
subjects randomly selected from an online group involved withears.
1059
surveys were returned. Construct a
95%
confidence interval for the proportion of returned surveys.
LOADING...
Click the icon to view a table of z scores.
Question content area bottom
Part 1
a) Find the best point estimate of the population proportionp.
enter your response here
(Round to three decimal places as needed.)
Part 2
b) Identify the value of the margin of error E.
E=enter your response here
(Round to three decimal places as needed.)
Part 3
c) Construct the confidence interval.
enter your response here<p<enter your response here
(Round to three decimal places as needed.)
Part 4
d) Write a statement that correctly interprets the confidenceinterval. Choose the correct answer below.
A.There is a
95%
chance that the true value of the population proportion willfall between the lower bound and the upper bound.
B.One has
95%
confidence that the interval from the lower bound to the upperbound actually does contain the true value of the populationproportion.
C.
95%
of sample proportions will fall between the lower bound and theupper bound.
D.One has
95%
confidence that the sample proportion is equal to the populationproportion.