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Hello I need help with my pre-calculus homework #12. It is about 6 detailed questions and I will need scrap notes of these answers as well.
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Forum post (Confidence Interval)
Topic 1: Confidence Interval View Full Description Confidence Intervals for the Mean sigma knownMain PostAssuming .05 as ...
Forum post (Confidence Interval)
Topic 1: Confidence Interval View Full Description Confidence Intervals for the Mean sigma knownMain PostAssuming .05 as your alpha value, make up a problem similar to this one. Make up 36 gas prices for your example. Use price values in your list that some you made up and be sure they are similar to the prices you have had in your area. List the values in your post.Instructions for your response. You will respond to at least 2 classmates.In your response, describe what you did and give the mean, standard deviation and confidence interval.Example below:
First find the mean. List all 36 gas prices in cells A1 to A36 in your excel spreadsheet.
On a different cell type in =average(A1:A36) and the hit enter to find the average
Assume your answer is 2.65
On a different cell type in =stdev.s(A1:A36) or =stdevA(A1:A36) and enter to find the standard deviation
Assume your answer is .43
Then type this in an excel cell =confidence(.05,.43,36) and hit enter. This is the E value
So take the mean of 2.65 and you have (2.65-E, 2.65+E) for your confidence interval
Formula you used above for the confidence interval:The formula is E= zsubc * sigma / sqrt nWhere the left hand endpoint is xbar - E and the right hand endpoint is xbar + EJust a review of your instructions:
First you will make up a problem with alpha = .05 and give the values for the problem. This is your main post.
Then will make 2 responses explaining all work and giving the solutions to 2 classmates problems.
Instructions: Your initial post should be at least 250 words. Please respond to at least 2 other students. Responses should be a minimum of 100 words and include direct questions.To earn full credit for this forum, you must respond to at least two (2) of your peers and post your initial post by Thurs.
Introduction to Statistics Question Response
In a survey, 24 IT professionals in Chicago were asked how much their annual salary was for the year 2012. The results are ...
Introduction to Statistics Question Response
In a survey, 24 IT professionals in Chicago were asked how much their annual salary was for the year 2012. The results are shown below:
$109,000
$ 65,000
$ 65,000
$ 59,000
$ 180,000
$ 101,325
$ 130,000
$95,000
$ 81,500
$69,000
$71,500
$ 74,880
$64,000
$72,000
$ 71,000
$ 82,300
$49,000
$51,200
$ 39,000
$48,500
$64,330
$ 41,100
$52,330
$82,000
Construct a frequency distribution with 5 classes.
Create a histogram of the data using the frequency table from question 1-a.
A software company asked 100 of its programmers to develop a certain program individually. The following histogram shows the time it takes a programmer to finish the task:
How many classes are there for the given histogram?
What is the class width of the histogram?
What percentage of programmers can complete the task in 30 hours?
How many hours does it take the majority of the programmers to complete the task?
Search the Internet for prices of 11 different laptops.
Compute the mean, median, and mode of these prices.
Find the first and third quartiles of the prices.
In the following image, the memory usage of various processes of a computer running a Windows Operating System is shown:
Create a scatter plot of the memory usage of the processes.
Find the following measures of central tendency of the memory usage in kilobytes (Kb):
Mean
Mode
Median
Find the following measures of dispersion of the memory usage in Kb:
Range
Variance
Standard Deviation
Identify the values that are responsible for the variance of the dataset. Provide a possible solution on how the computer user could decrease the variance of his or her memory usage.
Answer the following questions completely, using proper grammar, complete sentences, and correct terminology:
Explain what it means to have a standard deviation of 0.
Without doing any calculations, is it possible to tell which of the following 2 sets has a higher standard deviation? Explain your answer.
Set 1 = {1,2,3,4,5,6,7,8}
Set 2 = {2,4,6,8,10,12,14,16}
4 pages
Attachment 1 2 Converted
Using DESMOS, a graphing software program, you will create a picture of an issue related to equity or mental health using ...
Attachment 1 2 Converted
Using DESMOS, a graphing software program, you will create a picture of an issue related to equity or mental health using equations of functions that ...
What have you learned about statistics?
The question to address is, what have you learned about statistics? In developing your responses, consider—at a minimum� ...
What have you learned about statistics?
The question to address is, what have you learned about statistics? In developing your responses, consider—at a minimum—and discuss the application of each of the course elements in analyzing and making decisions about data (counts and/or measurements).The course elements include:Descriptive statistics.Inferential statistics.Hypothesis development and testing.Selection of appropriate statistical tests.Evaluating statistical results.The Final PaperMust be three to five double-spaced pages in length (not including title and references pages) and formatted according to APA style as outlined in the Ashford Writing Center.Must include a separate title page with the following:Title of paperStudent’s nameCourse name and numberInstructor’s nameDate submittedMust begin with an introductory paragraph that has a succinct thesis statement.Must address the topic of the paper with critical thought.Must end with a conclusion that reaffirms your thesis.Must use at least three scholarly sources in addition to the course text.The Scholarly, Peer Reviewed, and Other Credible Sources table offers additional guidance on appropriate source types. If you have questions about whether a specific source is appropriate for this assignment, please contact your instructor. Your instructor has the final say about the appropriateness of a specific source for a particular assignment.Must document all sources in APA style as outlined in the Ashford Writing Center.Must include a separate references page that is formatted according to APA style as outlined in the Ashford Writing Center.
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Most Popular Content
Forum post (Confidence Interval)
Topic 1: Confidence Interval View Full Description Confidence Intervals for the Mean sigma knownMain PostAssuming .05 as ...
Forum post (Confidence Interval)
Topic 1: Confidence Interval View Full Description Confidence Intervals for the Mean sigma knownMain PostAssuming .05 as your alpha value, make up a problem similar to this one. Make up 36 gas prices for your example. Use price values in your list that some you made up and be sure they are similar to the prices you have had in your area. List the values in your post.Instructions for your response. You will respond to at least 2 classmates.In your response, describe what you did and give the mean, standard deviation and confidence interval.Example below:
First find the mean. List all 36 gas prices in cells A1 to A36 in your excel spreadsheet.
On a different cell type in =average(A1:A36) and the hit enter to find the average
Assume your answer is 2.65
On a different cell type in =stdev.s(A1:A36) or =stdevA(A1:A36) and enter to find the standard deviation
Assume your answer is .43
Then type this in an excel cell =confidence(.05,.43,36) and hit enter. This is the E value
So take the mean of 2.65 and you have (2.65-E, 2.65+E) for your confidence interval
Formula you used above for the confidence interval:The formula is E= zsubc * sigma / sqrt nWhere the left hand endpoint is xbar - E and the right hand endpoint is xbar + EJust a review of your instructions:
First you will make up a problem with alpha = .05 and give the values for the problem. This is your main post.
Then will make 2 responses explaining all work and giving the solutions to 2 classmates problems.
Instructions: Your initial post should be at least 250 words. Please respond to at least 2 other students. Responses should be a minimum of 100 words and include direct questions.To earn full credit for this forum, you must respond to at least two (2) of your peers and post your initial post by Thurs.
Introduction to Statistics Question Response
In a survey, 24 IT professionals in Chicago were asked how much their annual salary was for the year 2012. The results are ...
Introduction to Statistics Question Response
In a survey, 24 IT professionals in Chicago were asked how much their annual salary was for the year 2012. The results are shown below:
$109,000
$ 65,000
$ 65,000
$ 59,000
$ 180,000
$ 101,325
$ 130,000
$95,000
$ 81,500
$69,000
$71,500
$ 74,880
$64,000
$72,000
$ 71,000
$ 82,300
$49,000
$51,200
$ 39,000
$48,500
$64,330
$ 41,100
$52,330
$82,000
Construct a frequency distribution with 5 classes.
Create a histogram of the data using the frequency table from question 1-a.
A software company asked 100 of its programmers to develop a certain program individually. The following histogram shows the time it takes a programmer to finish the task:
How many classes are there for the given histogram?
What is the class width of the histogram?
What percentage of programmers can complete the task in 30 hours?
How many hours does it take the majority of the programmers to complete the task?
Search the Internet for prices of 11 different laptops.
Compute the mean, median, and mode of these prices.
Find the first and third quartiles of the prices.
In the following image, the memory usage of various processes of a computer running a Windows Operating System is shown:
Create a scatter plot of the memory usage of the processes.
Find the following measures of central tendency of the memory usage in kilobytes (Kb):
Mean
Mode
Median
Find the following measures of dispersion of the memory usage in Kb:
Range
Variance
Standard Deviation
Identify the values that are responsible for the variance of the dataset. Provide a possible solution on how the computer user could decrease the variance of his or her memory usage.
Answer the following questions completely, using proper grammar, complete sentences, and correct terminology:
Explain what it means to have a standard deviation of 0.
Without doing any calculations, is it possible to tell which of the following 2 sets has a higher standard deviation? Explain your answer.
Set 1 = {1,2,3,4,5,6,7,8}
Set 2 = {2,4,6,8,10,12,14,16}
4 pages
Attachment 1 2 Converted
Using DESMOS, a graphing software program, you will create a picture of an issue related to equity or mental health using ...
Attachment 1 2 Converted
Using DESMOS, a graphing software program, you will create a picture of an issue related to equity or mental health using equations of functions that ...
What have you learned about statistics?
The question to address is, what have you learned about statistics? In developing your responses, consider—at a minimum� ...
What have you learned about statistics?
The question to address is, what have you learned about statistics? In developing your responses, consider—at a minimum—and discuss the application of each of the course elements in analyzing and making decisions about data (counts and/or measurements).The course elements include:Descriptive statistics.Inferential statistics.Hypothesis development and testing.Selection of appropriate statistical tests.Evaluating statistical results.The Final PaperMust be three to five double-spaced pages in length (not including title and references pages) and formatted according to APA style as outlined in the Ashford Writing Center.Must include a separate title page with the following:Title of paperStudent’s nameCourse name and numberInstructor’s nameDate submittedMust begin with an introductory paragraph that has a succinct thesis statement.Must address the topic of the paper with critical thought.Must end with a conclusion that reaffirms your thesis.Must use at least three scholarly sources in addition to the course text.The Scholarly, Peer Reviewed, and Other Credible Sources table offers additional guidance on appropriate source types. If you have questions about whether a specific source is appropriate for this assignment, please contact your instructor. Your instructor has the final say about the appropriateness of a specific source for a particular assignment.Must document all sources in APA style as outlined in the Ashford Writing Center.Must include a separate references page that is formatted according to APA style as outlined in the Ashford Writing Center.
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