Choosing a Formula • For each of the following types of statistics, write the formula we would use to find the 95% confidence interval estimating the associated population parameter. Do not actually attempt to calculate the interval! Just write what formula (in letters) we would use to find the interval, describe what each of the parts of the formula represent (adding numbers for letters you have actual values for, but not calculating anything), and explain why we would use that formula. • You asked 300 adults whether or not they like cheese, and 197 said yes. • The length of a particular species of tiger is known to have a standard deviation of .31 meters, and the 60 that you have sampled have a mean length of 3.2 meters. • When 20 5th-graders were asked how many books they read per month, the mean was 14.3 books, with a standard deviation of 2.7 books. Interpretation What does the "confidence" level in a confidence interval mean? If we say we have a 90% confidence level for a confidence interval, it means that 90% of...what? Be sure to explain how this is related to the sampling distribution concepts we learned in Week 7. Sketch a picture that illustrates this relationship. Sample Needed . For each of the following, determine the sample size needed to get the desired accuracy of the sample statistic in estimating the appropriate population parameter, with the desired level of confidence. Explain the process you use to find the needed sample size. Do not actually try to calculate the confidence interval, you don't have enough information. • You want to estimate the mean weight of a certain species of frog, within a margin of than 7 gr
Choosing a Formula • For each of the following types of statistics, write the formula we would use to find the 95% confidence interval estimating the associated population parameter. Do not actually attempt to calculate the interval! Just write what formula (in letters) we would use to find the interval, describe what each of the parts of the formula represent (adding numbers for letters you have actual values for, but not calculating anything), and explain why we would use that formula. • You asked 300 adults whether or not they like cheese, and 197 said yes. • The length of a particular species of tiger is known to have a standard deviation of .31 meters, and the 60 that you have sampled have a mean length of 3.2 meters. • When 20 5th-graders were asked how many books they read per month, the mean was 14.3 books, with a standard deviation of 2.7 books. Interpretation What does the "confidence" level in a confidence interval mean? If we say we have a 90% confidence level for a confidence interval, it means that 90% of...what? Be sure to explain how this is related to the sampling distribution concepts we learned in Week 7. Sketch a picture that illustrates this relationship. Sample Needed . For each of the following, determine the sample size needed to get the desired accuracy of the sample statistic in estimating the appropriate population parameter, with the desired level of confidence. Explain the process you use to find the needed sample size. Do not actually try to calculate the confidence interval, you don't have enough information. • You want to estimate the mean weight of a certain species of frog, within a margin of than 7 gr
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
I'm seeking help on the "Choosing a Formula", with the bullet points and the "Interpretation" portion that follows it.
Transcribed Image Text:Choosing a Formula
For each of the following types of statistics, write the formula we would use to find the 95% confidence
interval estimating the associated population parameter. Do not actually attempt to calculate the
interval! Just write what formula (in letters) we would use to find the interval, describe what each of the
parts of the formula represent (adding numbers for letters you have actual values for, but not calculating
anything), and explain why we would use that formula.
You asked 300 adults whether or not they like cheese, and 197 said yes.
• The length of a particular species of tiger is known to have a standard deviation of .31 meters, and
the 60 that you have sampled have a mean length of 3.2 meters.
. When 20 5th-graders were asked how many books they read per month, the mean was 14.3 books,
with a standard deviation of 2.7 books.
Interpretation
What does the "confidence" level in a confidence interval mean? If we say we have a 90% confidence level
for a confidence interval, it means that 90% of...what? Be sure to explain how this is related to the sampling
distribution concepts we learned in Week 7. Sketch a picture that illustrates this relationship.
Sample Needed
. For each of the following, determine the sample size needed to get the desired accuracy of the sample
statistic in estimating the appropriate population parameter, with the desired level of confidence.
Explain the process you use to find the needed sample size. Do not actually try to calculate the
confidence interval, you don't have enough information.
• You want to estimate the mean weight of a certain species of frog, within a margin of
than 7 gran
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman