A political newspaper, Politically Sound, is interested in the distances voters in Vanville County live from their nearest polling station. Politically Sound has hired you to estimate the population mean of all such distances for voters in this county. To estimate this population mean, you select a random sample of 17 Vanville County voters and record the distance (in km) each voter lives from their nearest polling station. Assume the population is approximately normally distributed. Based on your sample, follow the steps below to construct a 99% confidence interval for the population mean of all the distances voters in Vanville County live from their nearest polling station. (If necessary, consult a list of formulas.) (a) Click on "Take Sample" to see the results for your random sample. Sample standard Number of voters Sample mean Take Sample 17 4.179 deviation 2.023 Enter the values of the sample size, the point estimate of the mean, the sample standard deviation, 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: Point estimate: Standard error: Sample standard deviation: Margin of error: Critical value: Confidence level Critical value 99% 10.005 = 2.921 99% confidence interval: 95% 10.025 = 2.120 Compute 90% 10.050 1.746 (b) Based on your sample, enter the lower and upper limits to graph the 99% confidence interval for the population mean of all the distances voters in Vanville County live from their nearest polling station. 0.000 99% confidence interval: 10.000 0.000 2.000 4.000 6.000 8.000 10.000
A political newspaper, Politically Sound, is interested in the distances voters in Vanville County live from their nearest polling station. Politically Sound has hired you to estimate the population mean of all such distances for voters in this county. To estimate this population mean, you select a random sample of 17 Vanville County voters and record the distance (in km) each voter lives from their nearest polling station. Assume the population is approximately normally distributed. Based on your sample, follow the steps below to construct a 99% confidence interval for the population mean of all the distances voters in Vanville County live from their nearest polling station. (If necessary, consult a list of formulas.) (a) Click on "Take Sample" to see the results for your random sample. Sample standard Number of voters Sample mean Take Sample 17 4.179 deviation 2.023 Enter the values of the sample size, the point estimate of the mean, the sample standard deviation, 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: Point estimate: Standard error: Sample standard deviation: Margin of error: Critical value: Confidence level Critical value 99% 10.005 = 2.921 99% confidence interval: 95% 10.025 = 2.120 Compute 90% 10.050 1.746 (b) Based on your sample, enter the lower and upper limits to graph the 99% confidence interval for the population mean of all the distances voters in Vanville County live from their nearest polling station. 0.000 99% confidence interval: 10.000 0.000 2.000 4.000 6.000 8.000 10.000
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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Hello, May I get help on this VERY SOON please? I’m extremely confused and a clear explanation would be helpful! These are both the same question. Thank you!
Transcribed Image Text:A political newspaper, Politically Sound, is interested in the distances
voters in Vanville County live from their nearest polling station.
Politically Sound has hired you to estimate the population mean of all
such distances for voters in this county. To estimate this population
mean, you select a random sample of 17 Vanville County voters and
record the distance (in km) each voter lives from their nearest polling
station. Assume the population is approximately normally distributed.
Based on your sample, follow the steps below to construct a 99%
confidence interval for the population mean of all the distances voters in
Vanville County live from their nearest polling station. (If necessary,
consult a list of formulas.)
(a) Click on "Take Sample" to see the results for your random
sample.
Sample standard
Number of voters
Sample mean
Take Sample
17
4.179
deviation
2.023
Transcribed Image Text:Enter the values of the sample size, the point estimate of the
mean, the sample standard deviation, 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:
Point estimate:
Standard error:
Sample standard deviation:
Margin of error:
Critical value:
Confidence
level
Critical value
99%
10.005 = 2.921
99% confidence interval:
95%
10.025 = 2.120
Compute
90%
10.050 1.746
(b) Based on your sample, enter the lower and upper limits to graph
the 99% confidence interval for the population mean of all the
distances voters in Vanville County live from their nearest polling
station.
0.000
99% confidence interval:
10.000
0.000
2.000
4.000
6.000
8.000
10.000
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