MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Estimation
A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.
Question
10. A systematic sample of 1000 people across 10 states found that the average person generates 7.445 pounds of trash per day with a population standard deviation of 1.11 pounds. Determine if the information can be used to create a confidence interval. If so, find the 99% confidence interval. If not, give a detailed explanation as to why this information does not fit the definition 11. It is thought that 36% of the United States population vote only for a single party. In the recent election a random sample of 500 people in Tennessee were taken and it found that 225 have only ever voted for a single party. Answer the following: (a) Find the 94% confidence interval for the average percent of people in Tennessee who will only ever vote for a single party (b) If we wanted to ensure to keep the margin of error under 3%, how many people should we survey? (c) Based on your confidence interval, what can you say about voting patterns in Tennessee compared to the United States?
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Transcribed Image Text:10. A systematic sample of 1000 people across 10 states found that the average person generates 7.445 pounds of trash per day with a population standard deviation of 1.11 pounds. Determine if the information can be used to create a confidence interval. If so, find the 99% confidence interval. If not, give a detailed explanation as to why this information does not fit the definition 11. It is thought that 36% of the United States population vote only for a single party. In the recent election a random sample of 500 people in Tennessee were taken and it found that 225 have only ever voted for a single party. Answer the following: (a) Find the 94% confidence interval for the average percent of people in Tennessee who will only ever vote for a single party (b) If we wanted to ensure to keep the margin of error under 3%, how many people should we survey? (c) Based on your confidence interval, what can you say about voting patterns in Tennessee compared to the United States?
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