Do college students prefer printed textbooks to electronic textbooks? You work for a textbook publisher and want to estimate the population prop college students who prefer printed textbooks to electronic textbooks. So, you will survey a random sample of 40 college students. Follow the steps below to construct a 90% confidence interval for the population proportion of all college students who prefer printed textbooks t textbooks. (If necessary, consult a list of formulas.) (a) Click on "Take Sample" to see the results from the random sample. Number Proportion Prefers printed textbooks to electronic textbooks Take Sample 28 0.7 Does not prefer printed textbooks to electronic textbooks 0.3 12 Enter the values of the sample size, the point estimate of the population proportion, and the critical value you need for your 90% confideno ical val.uo from the table of critical valuos providod ) whon vou ar apute"
Do college students prefer printed textbooks to electronic textbooks? You work for a textbook publisher and want to estimate the population prop college students who prefer printed textbooks to electronic textbooks. So, you will survey a random sample of 40 college students. Follow the steps below to construct a 90% confidence interval for the population proportion of all college students who prefer printed textbooks t textbooks. (If necessary, consult a list of formulas.) (a) Click on "Take Sample" to see the results from the random sample. Number Proportion Prefers printed textbooks to electronic textbooks Take Sample 28 0.7 Does not prefer printed textbooks to electronic textbooks 0.3 12 Enter the values of the sample size, the point estimate of the population proportion, and the critical value you need for your 90% confideno ical val.uo from the table of critical valuos providod ) whon vou ar apute"
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Do college students prefer printed textbooks to electronic textbooks? You work for a textbook publisher and want to estimate the population proportion of all
college students who prefer printed textbooks to electronic textbooks. So, you will survey a random sample of 40 college students.
Follow the steps below to construct a 90% confidence interval for the population proportion of all college students who prefer printed textbooks to electronic
textbooks. (If necessary, consult a list of formulas.)
(a) Click on "Take Sample" to see the results from the random sample.
Number
Proportion
Prefers printed textbooks to electronic
Take Sample
28
0.7
textbooks
Does not prefer printed textbooks to
12
0.3
electronic textbooks
Enter the values of the sample size, the point estimate of the population proportion, and the critical value you need for your 90% confidence interval.
(Choose the correct critical value from the table of critical values provided.) When you are done, select "Compute".
Sample size:
Stan
error:
Point estimate:
Margin of error:
Confidence level Critical value
Critical value:
99%
Z0.005 = 2.576
90% confidence interval:
95%
Z0.025 = 1.960
Compute
90%
Z0.050 = 1.645
(b)
Based on your sample, enter the lower and upper limits to graph the 90% confidence interval for the population proportion of all college students who
prefer printed textbooks to electronic textbooks.
90% confidence interval:
1.000
0.000
1.000
0.000
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