A recent study claimed that 45% of the population of all college students prefer printed textbooks to electronic textbooks. You want to test this daim by surveying a random sample of 80 college students. Follow the steps below to construct a 99% confidence interval for the population proportion of all college students who prefer printed textbooks to electronic textbooks. Then state whether the confidence interval you construct contradicts the study's claim. (If necessary, consult a list of formulas.) (a) Click on "Take Sample" to see the results from the random sample. Number Proportion Take Sample Prefers printed textbooks to electronic textbooks 52 0.65 Does not prefer printed textbooks to electronic textbooks 28 0.35 Enter the values of the sample size, the point estimate of the population proportion, and the critical value you need for your 99% confidence interval. (Choose the correct critical value from the table of critical values provided.) When you are done, select "Compute". Sample size: Standard error:
A recent study claimed that 45% of the population of all college students prefer printed textbooks to electronic textbooks. You want to test this daim by surveying a random sample of 80 college students. Follow the steps below to construct a 99% confidence interval for the population proportion of all college students who prefer printed textbooks to electronic textbooks. Then state whether the confidence interval you construct contradicts the study's claim. (If necessary, consult a list of formulas.) (a) Click on "Take Sample" to see the results from the random sample. Number Proportion Take Sample Prefers printed textbooks to electronic textbooks 52 0.65 Does not prefer printed textbooks to electronic textbooks 28 0.35 Enter the values of the sample size, the point estimate of the population proportion, and the critical value you need for your 99% confidence interval. (Choose the correct critical value from the table of critical values provided.) When you are done, select "Compute". Sample size: Standard error:
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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
Transcribed Image Text:A recent study claimed that 45% of the population
want to test this daim by surveying a random sample of 80 college students.
all college students prefer printed textbooks to electronic textbooks. You
Follow the steps below to construct a 99% confidence interval for the population proportion of all college students who prefer
printed textbooks to electronic textbooks. Then state whether the confidence interval you construct contradicts the study's
claim. (If necessary, consult a list of formulas.)
(a)
Click on "Take Sample" to see the results from the random sample.
Number
Proportion
Take Sample
Prefers printed textbooks to electronic textbooks
52
0.65
Does not prefer printed textbooks to electronic
textbooks
28
0.35
Enter the values of the sample size, the point estimate of the population proportion, and the critical value you need for
your 99% confidence interval. (Choose the correct critical value from the table of critical values provided.) When you
are done, select "Compute".
Sample size:
Standard error:
values
Point estimate:
F0.005 2.576
Margin of error:
Critical value:
F0.010 2.326
*0.025 1.960
99% confidence interval:
F0.050 1.645
Compute
F0.100 1.282
(b) Based on your sample, graph the 99% confidence interval for the population proportion of all college students who
prefer printed textbooks to electronic textbooks.
• Enter the values for the lower and upper limits on the graph to show your confidence interval.
• For the point (•), enter the claim 0.45 from the study.
99% confidence interval:
0.000
1.000
0.500
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