how do you simplify 5x^-4/y^3
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Discuss the importance of constructing confidence intervals for the population mean.
What are confidence intervals?
What is a point estimate?
What is the best point estimate for the population mean? Explain.
Why do we need confidence intervals?
Find the best point estimate of the population mean.
Construct two confidence intervals for the population mean: a 95% confidence interval and a 99% confidence interval. Assume that your data is normally distributed and the population standard deviation is unknown.
Please show your work for the construction of these confidence intervals and be sure to format your equations to fit the appropriate form (may need editing here).
Write a paragraph that correctly interprets the confidence intervals in context of your selected topic.
Compare and contrast your findings for the 95% and 99% confidence intervals.
Did you notice any changes in your interval estimate? Explain.
What conclusion(s) can be drawn about your interval estimates when the confidence level is increased? Explain.
MATTH 225N Chamberlain College Wk 7 Statistical Reasoning Lab Questions
Demonstrate
Steps to Complete the Week 7 Lab
Step 1: Find these articles in the Chamberlain Library. Once you click each l ...
MATTH 225N Chamberlain College Wk 7 Statistical Reasoning Lab Questions
Demonstrate
Steps to Complete the Week 7 Lab
Step 1: Find these articles in the Chamberlain Library. Once you click each link, you will be logged into the Library and then click on "PDF Full Text".
First Article: Confidence Intervals, Part 1 (Links to an external site.)
Second Article: Confidence Intervals, Part 2 (Links to an external site.)
Step 2: Consider the use of confidence intervals in health sciences with these articles as inspiration and insights.
Step 3: Using the data you collected for the Week 5 Lab (heights of 10 different people that you work with plus the 10 heights provided by your instructor), discuss your method of collection for the values that you are using in your study (systematic, convenience, cluster, stratified, simple random). What are some faults with this type of data collection? What other types of data collection could you have used, and how might this have affected your study?
Step 4: Now use the Week 6 Spreadsheet to help you with calculations for the following questions/statements.
a) Give a point estimate (mean) for the average height of all people at the place where you work. Start by putting the 20 heights you are working with into the blue Data column of the spreadsheet. What is your point estimate, and what does this mean?
b) Find a 95% confidence interval for the true mean height of all the people at your place of work. What is the interval? [see screenshot below]
c) Give a practical interpretation of the interval you found in part b, and explain carefully what the output means. (For example, you might say, "I am 95% confident that the true mean height of all of the people in my company is between 64 inches and 68 inches").
d) Post a screenshot of your work from the t value Confidence Interval for µ from the Confidence Interval tab on the Week 6 Excel spreadsheet
Step 5: Now, change your confidence level to 99% for the same data, and post a screenshot of this table, as well.
Step 6: Compare the margins of error from the two screenshots. Would the margin of error be larger or smaller for the 99% CI? Explain your reasoning.
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Most Popular Content
10 pages
Statistical Learning With Applications
(a) Create a training set containing a random sample of 800 observations, and a test set containing (b) Fit a tree to the ...
Statistical Learning With Applications
(a) Create a training set containing a random sample of 800 observations, and a test set containing (b) Fit a tree to the training data, with Purchase ...
6 pages
Email Marketing
Email marketing is the marketing strategy that involves the act of electronic sending of commercial messages to a group of ...
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Email marketing is the marketing strategy that involves the act of electronic sending of commercial messages to a group of people. The messages mainly ...
Inferential Statistics and Analytics
his week you will begin working on Phase 2 of your course project. Using the same data set and variables for your select ...
Inferential Statistics and Analytics
his week you will begin working on Phase 2 of your course project. Using the same data set and variables for your selected topic, add the following information to your analysis:
Discuss the importance of constructing confidence intervals for the population mean.
What are confidence intervals?
What is a point estimate?
What is the best point estimate for the population mean? Explain.
Why do we need confidence intervals?
Find the best point estimate of the population mean.
Construct two confidence intervals for the population mean: a 95% confidence interval and a 99% confidence interval. Assume that your data is normally distributed and the population standard deviation is unknown.
Please show your work for the construction of these confidence intervals and be sure to format your equations to fit the appropriate form (may need editing here).
Write a paragraph that correctly interprets the confidence intervals in context of your selected topic.
Compare and contrast your findings for the 95% and 99% confidence intervals.
Did you notice any changes in your interval estimate? Explain.
What conclusion(s) can be drawn about your interval estimates when the confidence level is increased? Explain.
MATTH 225N Chamberlain College Wk 7 Statistical Reasoning Lab Questions
Demonstrate
Steps to Complete the Week 7 Lab
Step 1: Find these articles in the Chamberlain Library. Once you click each l ...
MATTH 225N Chamberlain College Wk 7 Statistical Reasoning Lab Questions
Demonstrate
Steps to Complete the Week 7 Lab
Step 1: Find these articles in the Chamberlain Library. Once you click each link, you will be logged into the Library and then click on "PDF Full Text".
First Article: Confidence Intervals, Part 1 (Links to an external site.)
Second Article: Confidence Intervals, Part 2 (Links to an external site.)
Step 2: Consider the use of confidence intervals in health sciences with these articles as inspiration and insights.
Step 3: Using the data you collected for the Week 5 Lab (heights of 10 different people that you work with plus the 10 heights provided by your instructor), discuss your method of collection for the values that you are using in your study (systematic, convenience, cluster, stratified, simple random). What are some faults with this type of data collection? What other types of data collection could you have used, and how might this have affected your study?
Step 4: Now use the Week 6 Spreadsheet to help you with calculations for the following questions/statements.
a) Give a point estimate (mean) for the average height of all people at the place where you work. Start by putting the 20 heights you are working with into the blue Data column of the spreadsheet. What is your point estimate, and what does this mean?
b) Find a 95% confidence interval for the true mean height of all the people at your place of work. What is the interval? [see screenshot below]
c) Give a practical interpretation of the interval you found in part b, and explain carefully what the output means. (For example, you might say, "I am 95% confident that the true mean height of all of the people in my company is between 64 inches and 68 inches").
d) Post a screenshot of your work from the t value Confidence Interval for µ from the Confidence Interval tab on the Week 6 Excel spreadsheet
Step 5: Now, change your confidence level to 99% for the same data, and post a screenshot of this table, as well.
Step 6: Compare the margins of error from the two screenshots. Would the margin of error be larger or smaller for the 99% CI? Explain your reasoning.
The range of the relation
What is the range of the relation shown below? A. {Florida, California, New York, Ohio} B. {3.2%, 5.3%, 6%, 7.3%, 10%} C. ...
The range of the relation
What is the range of the relation shown below? A. {Florida, California, New York, Ohio} B. {3.2%, 5.3%, 6%, 7.3%, 10%} C. {5.3%, 6%, 7.3%} D. {California, Ohio}
IT Auditing and Security Risk Management DISCUSSION (AIU)
At this point, you have a pretty clear understanding that although PVSS has a desire to do things in sound and secure fash ...
IT Auditing and Security Risk Management DISCUSSION (AIU)
At this point, you have a pretty clear understanding that although PVSS has a desire to do things in sound and secure fashion, it is not able to consolidate efforts and focus its attention in appropriate places.Part of the IT organization thinks that locking down the workstations is critical at this point, while a different group thinks that securing the network and servers should be considered a top priority.Explain why you feel that having both teams continuously discussing and working separately would not be the ideal solution.What is your understanding of risk assessment?How do you think a risk assessment might be able to resolve this conflict?What is your understanding of risk assessment?
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