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13. n + (n+1) + (n+2) = 51, 3n + 3 = 51, n = 48/3 = 16, so integers are 16,17,18.
14. n + (n+1), + (n +2) = -15, 3n + 3 = -15, n = -18/3=-6, so integers are -6,-5,-4
15. n + (n+1) + (n+2) + (n+3) = 30, 4n + 6 = 30, n = 24/4 = 6, so integers are 6,7,8,9.
16. 5x + 4(x+3) = 66, 9x + 12 = 66, x = 44/9 = $4.89/hour.
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statistics
7.1.4Stephen Stigler determined in 1977 that the speed of light is 299,710.5 km/sec. In 1882, Albert Michelson had collec ...
statistics
7.1.4Stephen Stigler determined in 1977 that the speed of light is 299,710.5 km/sec. In 1882, Albert Michelson had collected measurements on the speed of light ("Student t-distribution," 2013). Is there evidence to show that Michelson’s data is different from Stigler’s value of the speed of light? State the random variable, population parameter, and hypotheses.7.1.6According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft. In that year, Alaska had 321 complaints of identity theft out of 1,432 consumer complaints ("Consumer fraud and," 2008). Does this data provide enough evidence to show that Alaska had a lower proportion of identity theft than 23%? State the type I and type II errors in this case, consequences of each error type for this situation, and the appropriate alpha level to use.7.2.4According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft. In that year, Alaska had 321 complaints of identity theft out of 1,432 consumer complaints ("Consumer fraud and," 2008). Does this data provide enough evidence to show that Alaska had a lower proportion of identity theft than 23%? Test at the 5% level.7.2.6In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD) ("Autism and developmental," 2008). Nationally 1 in 88 children are diagnosed with ASD ("CDC features -," 2013). Is there sufficient data to show that the incident of ASD is more in Arizona than nationally? Test at the 1% level.7.3.6The economic dynamism, which is the index of productive growth in dollars for countries that are designated by the World Bank as middle-income are in table #7.3.8 ("SOCR data 2008," 2013). Countries that are considered high-income have a mean economic dynamism of 60.29. Do the data show that the mean economic dynamism of middle-income countries is less than the mean for high-income countries? Test at the 5% level.Table #7.3.8: Economic Dynamism of Middle Income Countries25.8057 37.4511 51.915 43.6952 47.8506 43.7178 58.076741.1648 38.0793 37.7251 39.6553 42.0265 48.6159 43.855549.1361 61.9281 41.9543 44.9346 46.0521 48.3652 43.625250.9866 59.1724 39.6282 33.6074 21.6643 7.3.8Maintaining your balance may get harder as you grow older. A study was conducted to see how steady the elderly is on their feet. They had the subjects stand on a force platform and have them react to a noise. The force platform then measured how much they swayed forward and backward, and the data is in table #7.3.10 ("Maintaining balance while," 2013). Do the data show that the elderly sway more than the mean forward sway of younger people, which is 18.125 mm? Test at the 5% level.Table #7.3.10: Forward/backward Sway (in mm) of Elderly Subjects19 30 20 19 29 25 21 24 508.1.4Suppose you compute a confidence interval with a sample size of 100. What will happen to the confidence interval if the sample size decreases to 80?8.1.8In 2013, Gallup conducted a poll and found a 95% confidence interval of the proportion of Americans who believe it is the government’s responsibility for health care. Give the statistical interpretation.8.2.6In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD) ("Autism and developmental," 2008). Find the proportion of ASD in Arizona with a confidence level of 99%.8.3.6The economic dynamism, which is the index of productive growth in dollars for countries that are designated by the World Bank as middle-income are in table #8.3.9 ("SOCR data 2008," 2013). Compute a 95% confidence interval for the mean economic dynamism of middle-income countries.Table #8.3.9: Economic Dynamism ($) of Middle Income Countries25.8057 37.4511 51.915 43.6952 47.8506 43.7178 58.076741.1648 38.0793 37.7251 39.6553 42.0265 48.6159 43.855549.1361 61.9281 41.9543 44.9346 46.0521 48.3652 43.625250.9866 59.1724 39.6282 33.6074 21.6643
MTH 156 CSU Brazil Population Growth Rate Statistical Analysis
Option #2: World Populations
There are 195 sovereign countries in the world today that are
officially recognized. One ...
MTH 156 CSU Brazil Population Growth Rate Statistical Analysis
Option #2: World Populations
There are 195 sovereign countries in the world today that are
officially recognized. One can choose to look at many types of data
coming from these countries, as there is a plethora of existing
information. For this assignment, you will be looking at populations of
cities within Italy at four different points in time (depending on when a
census was taken). The data for these cities can be found in the file
named Populations. Use all of the data points for each of the years given, but note that not every city has a population for each census.Prepare a report (see below) using the numerical methods of
descriptive statistics presented in this module to show how the
populations of the cities vary over the years (growth rates). Be sure to
include the following three (3) items in your report:
Compute descriptive statistics for each of the years along with an
explanation of what the descriptive statistics tell us about the
different years. Are the cities continually growing or is there a
decrease in the number of people? The descriptive statistics will
include the mean, mode, range, standard deviation, and the five-number
summary (minimum, first quartile (Q1), median (Q2), third quartile (Q3),
and maximum).
Determine which cities, if any, should be considered outliers in
each of the years. If there are any outliers in any year, list them and
state for which year each one is an outlier. Use the z-score method to
determine outliers for this question showing the z-score calculations
for each city and year in your spreadsheet.
Determine the correlation coefficient between the first year and
each of the other years. Provide an explanation of these relationships.
Show your calculations for each correlation coefficient within the
spreadsheet.
Requirements:
Your paper should be 2-3 pages in length (not counting the title
page and references page) and cite and integrate at least one credible
outside source. The CSU Global Library is a great place to find
resources. Your textbook is a credible resource.
Include a title page, introduction, body, conclusion, and a reference page.
The introduction should describe or summarize the topic or problem.
It might discuss the general applications of the topic or it might
introduce the unique terminology associated with the topic.
The body of your paper should address the questions posed in the
problem. Explain how you approached and answered the question or solved
the problem, and, for each question, show all steps involved. Be sure
this is in paragraph format, not numbered answers like a homework
assignment.
The conclusion should summarize your thoughts about what you have
determined from your analysis in completing the assignment. Nothing new
should be introduced in the conclusion that was not previously discussed
in the body paragraphs.
Include any tables of data or calculations, calculated values,
and/or graphs referenced in the paper. (Note: The minimum required
length excludes any tables or graphs.)
Document formatting, citations, and style should conform to the CSU Global Guide to Writing and APA Requirements (Links to an external site.). A short summary containing much that you need to know about paper formatting, citations, and references is contained in the Template Paper (Links to an external site.). In addition, information in the CSU Global Writing Center (Links to an external site.) has many helpful areas (Writing Tips, Template & Examples/Papers & Essays, Figures and Tables, and others).
NOTE: You MUST submit your Excel file with your report. This will
allow you to qualify for consideration for partial credit if any errors
are found in your report.
Colorado State University Analyzing Advertising Expenditure & Sales Task
As a data scientist of a company, you want to analyze the following data collected by your company which relates the adver ...
Colorado State University Analyzing Advertising Expenditure & Sales Task
As a data scientist of a company, you want to analyze the following data collected by your company which relates the advertising expenditure A in thousands of dollars to total sales S in thousands of dollars. The following table shows this relationship:
Advertising Expenditure (A)
Total Sales (S)
19
325
21
329
21.5
328
23
333
23
331
26
340
27.3
341
Determine if the above relation (A, S) defines a function or not.
Using Excel, draw a scatter diagram of data. Click here (Links to an external site.) for a video explanation on how to create a scatter plot and linear regression.
Using Excel, find the line of the best fit of the models.
Add this line to the scatter diagram.
Interpret the slope and y-intercept of this equation.
Express this equation as a function S of A and find its domain.
Predict the sales if the advertising expenditure is $24000.
Northern Star Counting Principles Permutations & Distribution Questions
You DO NOT need to show your work unless the question specifically asks you to. FST: 24 Questions - Basic Principles of ...
Northern Star Counting Principles Permutations & Distribution Questions
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Data analysis tool: employees with a Bachelor degree and MBA
Please use the PreWorkDummyData.xlsx to answer the following questions.Question 1 What is the mean difference in Years at ...
Data analysis tool: employees with a Bachelor degree and MBA
Please use the PreWorkDummyData.xlsx to answer the following questions.Question 1 What is the mean difference in Years at Company between employees with a Bachelor degree and those with an MBA? (round to 2 decimal points. ex. 1.22) Question 2- 25 pts What is the variance in Years at the Company for employees with an MBA? (round to 2 decimal points. ex. 1.22) Question 3- 25 pts What is the t-statistic for the difference In Years at the Company for employees with an Bachelor degree vs an MBA? (round to 2 decimal points. ex. 1.22) Question 4- 25 pts Is the difference In Years at the Company for employees with an Bachelor degree vs an MBA significant? Yes. The p-value is less than .01 but more than .001 No Yes. The p-value is less than .001 Yes. The p-value is less than .05 but more than .01
TU Exploring the Zeros of Polynomials Fractions Roots & Whole Numbers Discussion
DescriptionIn this discussion, you will explore the zeros of polynomials.InstructionsStep 1: Respond to the following:Imag ...
TU Exploring the Zeros of Polynomials Fractions Roots & Whole Numbers Discussion
DescriptionIn this discussion, you will explore the zeros of polynomials.InstructionsStep 1: Respond to the following:Imagine you are writing exam questions for an algebra course. You want to write questions that include finding the zeros of polynomials. To balance the difficulty level of the test’s questions, you decide to include two different types of questions, as described here:Question #1: A polynomial of degree at least 3 where all the zeros are positive whole numbersQuestion #2: A polynomial of degree at least 3 where one or more of the roots are fractionsFind two polynomials for the two described questions. Explain how you know each question satisfies the requirements stated. What approach did you use to find these polynomials?*Be sure to cite any outside sources in APA format.
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Most Popular Content
statistics
7.1.4Stephen Stigler determined in 1977 that the speed of light is 299,710.5 km/sec. In 1882, Albert Michelson had collec ...
statistics
7.1.4Stephen Stigler determined in 1977 that the speed of light is 299,710.5 km/sec. In 1882, Albert Michelson had collected measurements on the speed of light ("Student t-distribution," 2013). Is there evidence to show that Michelson’s data is different from Stigler’s value of the speed of light? State the random variable, population parameter, and hypotheses.7.1.6According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft. In that year, Alaska had 321 complaints of identity theft out of 1,432 consumer complaints ("Consumer fraud and," 2008). Does this data provide enough evidence to show that Alaska had a lower proportion of identity theft than 23%? State the type I and type II errors in this case, consequences of each error type for this situation, and the appropriate alpha level to use.7.2.4According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft. In that year, Alaska had 321 complaints of identity theft out of 1,432 consumer complaints ("Consumer fraud and," 2008). Does this data provide enough evidence to show that Alaska had a lower proportion of identity theft than 23%? Test at the 5% level.7.2.6In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD) ("Autism and developmental," 2008). Nationally 1 in 88 children are diagnosed with ASD ("CDC features -," 2013). Is there sufficient data to show that the incident of ASD is more in Arizona than nationally? Test at the 1% level.7.3.6The economic dynamism, which is the index of productive growth in dollars for countries that are designated by the World Bank as middle-income are in table #7.3.8 ("SOCR data 2008," 2013). Countries that are considered high-income have a mean economic dynamism of 60.29. Do the data show that the mean economic dynamism of middle-income countries is less than the mean for high-income countries? Test at the 5% level.Table #7.3.8: Economic Dynamism of Middle Income Countries25.8057 37.4511 51.915 43.6952 47.8506 43.7178 58.076741.1648 38.0793 37.7251 39.6553 42.0265 48.6159 43.855549.1361 61.9281 41.9543 44.9346 46.0521 48.3652 43.625250.9866 59.1724 39.6282 33.6074 21.6643 7.3.8Maintaining your balance may get harder as you grow older. A study was conducted to see how steady the elderly is on their feet. They had the subjects stand on a force platform and have them react to a noise. The force platform then measured how much they swayed forward and backward, and the data is in table #7.3.10 ("Maintaining balance while," 2013). Do the data show that the elderly sway more than the mean forward sway of younger people, which is 18.125 mm? Test at the 5% level.Table #7.3.10: Forward/backward Sway (in mm) of Elderly Subjects19 30 20 19 29 25 21 24 508.1.4Suppose you compute a confidence interval with a sample size of 100. What will happen to the confidence interval if the sample size decreases to 80?8.1.8In 2013, Gallup conducted a poll and found a 95% confidence interval of the proportion of Americans who believe it is the government’s responsibility for health care. Give the statistical interpretation.8.2.6In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD) ("Autism and developmental," 2008). Find the proportion of ASD in Arizona with a confidence level of 99%.8.3.6The economic dynamism, which is the index of productive growth in dollars for countries that are designated by the World Bank as middle-income are in table #8.3.9 ("SOCR data 2008," 2013). Compute a 95% confidence interval for the mean economic dynamism of middle-income countries.Table #8.3.9: Economic Dynamism ($) of Middle Income Countries25.8057 37.4511 51.915 43.6952 47.8506 43.7178 58.076741.1648 38.0793 37.7251 39.6553 42.0265 48.6159 43.855549.1361 61.9281 41.9543 44.9346 46.0521 48.3652 43.625250.9866 59.1724 39.6282 33.6074 21.6643
MTH 156 CSU Brazil Population Growth Rate Statistical Analysis
Option #2: World Populations
There are 195 sovereign countries in the world today that are
officially recognized. One ...
MTH 156 CSU Brazil Population Growth Rate Statistical Analysis
Option #2: World Populations
There are 195 sovereign countries in the world today that are
officially recognized. One can choose to look at many types of data
coming from these countries, as there is a plethora of existing
information. For this assignment, you will be looking at populations of
cities within Italy at four different points in time (depending on when a
census was taken). The data for these cities can be found in the file
named Populations. Use all of the data points for each of the years given, but note that not every city has a population for each census.Prepare a report (see below) using the numerical methods of
descriptive statistics presented in this module to show how the
populations of the cities vary over the years (growth rates). Be sure to
include the following three (3) items in your report:
Compute descriptive statistics for each of the years along with an
explanation of what the descriptive statistics tell us about the
different years. Are the cities continually growing or is there a
decrease in the number of people? The descriptive statistics will
include the mean, mode, range, standard deviation, and the five-number
summary (minimum, first quartile (Q1), median (Q2), third quartile (Q3),
and maximum).
Determine which cities, if any, should be considered outliers in
each of the years. If there are any outliers in any year, list them and
state for which year each one is an outlier. Use the z-score method to
determine outliers for this question showing the z-score calculations
for each city and year in your spreadsheet.
Determine the correlation coefficient between the first year and
each of the other years. Provide an explanation of these relationships.
Show your calculations for each correlation coefficient within the
spreadsheet.
Requirements:
Your paper should be 2-3 pages in length (not counting the title
page and references page) and cite and integrate at least one credible
outside source. The CSU Global Library is a great place to find
resources. Your textbook is a credible resource.
Include a title page, introduction, body, conclusion, and a reference page.
The introduction should describe or summarize the topic or problem.
It might discuss the general applications of the topic or it might
introduce the unique terminology associated with the topic.
The body of your paper should address the questions posed in the
problem. Explain how you approached and answered the question or solved
the problem, and, for each question, show all steps involved. Be sure
this is in paragraph format, not numbered answers like a homework
assignment.
The conclusion should summarize your thoughts about what you have
determined from your analysis in completing the assignment. Nothing new
should be introduced in the conclusion that was not previously discussed
in the body paragraphs.
Include any tables of data or calculations, calculated values,
and/or graphs referenced in the paper. (Note: The minimum required
length excludes any tables or graphs.)
Document formatting, citations, and style should conform to the CSU Global Guide to Writing and APA Requirements (Links to an external site.). A short summary containing much that you need to know about paper formatting, citations, and references is contained in the Template Paper (Links to an external site.). In addition, information in the CSU Global Writing Center (Links to an external site.) has many helpful areas (Writing Tips, Template & Examples/Papers & Essays, Figures and Tables, and others).
NOTE: You MUST submit your Excel file with your report. This will
allow you to qualify for consideration for partial credit if any errors
are found in your report.
Colorado State University Analyzing Advertising Expenditure & Sales Task
As a data scientist of a company, you want to analyze the following data collected by your company which relates the adver ...
Colorado State University Analyzing Advertising Expenditure & Sales Task
As a data scientist of a company, you want to analyze the following data collected by your company which relates the advertising expenditure A in thousands of dollars to total sales S in thousands of dollars. The following table shows this relationship:
Advertising Expenditure (A)
Total Sales (S)
19
325
21
329
21.5
328
23
333
23
331
26
340
27.3
341
Determine if the above relation (A, S) defines a function or not.
Using Excel, draw a scatter diagram of data. Click here (Links to an external site.) for a video explanation on how to create a scatter plot and linear regression.
Using Excel, find the line of the best fit of the models.
Add this line to the scatter diagram.
Interpret the slope and y-intercept of this equation.
Express this equation as a function S of A and find its domain.
Predict the sales if the advertising expenditure is $24000.
Northern Star Counting Principles Permutations & Distribution Questions
You DO NOT need to show your work unless the question specifically asks you to. FST: 24 Questions - Basic Principles of ...
Northern Star Counting Principles Permutations & Distribution Questions
You DO NOT need to show your work unless the question specifically asks you to. FST: 24 Questions - Basic Principles of Probability, Addition and Multiplication Counting Principles, Permutations, and Probability DistributionAll questions are in the attached Word.doc
Data analysis tool: employees with a Bachelor degree and MBA
Please use the PreWorkDummyData.xlsx to answer the following questions.Question 1 What is the mean difference in Years at ...
Data analysis tool: employees with a Bachelor degree and MBA
Please use the PreWorkDummyData.xlsx to answer the following questions.Question 1 What is the mean difference in Years at Company between employees with a Bachelor degree and those with an MBA? (round to 2 decimal points. ex. 1.22) Question 2- 25 pts What is the variance in Years at the Company for employees with an MBA? (round to 2 decimal points. ex. 1.22) Question 3- 25 pts What is the t-statistic for the difference In Years at the Company for employees with an Bachelor degree vs an MBA? (round to 2 decimal points. ex. 1.22) Question 4- 25 pts Is the difference In Years at the Company for employees with an Bachelor degree vs an MBA significant? Yes. The p-value is less than .01 but more than .001 No Yes. The p-value is less than .001 Yes. The p-value is less than .05 but more than .01
TU Exploring the Zeros of Polynomials Fractions Roots & Whole Numbers Discussion
DescriptionIn this discussion, you will explore the zeros of polynomials.InstructionsStep 1: Respond to the following:Imag ...
TU Exploring the Zeros of Polynomials Fractions Roots & Whole Numbers Discussion
DescriptionIn this discussion, you will explore the zeros of polynomials.InstructionsStep 1: Respond to the following:Imagine you are writing exam questions for an algebra course. You want to write questions that include finding the zeros of polynomials. To balance the difficulty level of the test’s questions, you decide to include two different types of questions, as described here:Question #1: A polynomial of degree at least 3 where all the zeros are positive whole numbersQuestion #2: A polynomial of degree at least 3 where one or more of the roots are fractionsFind two polynomials for the two described questions. Explain how you know each question satisfies the requirements stated. What approach did you use to find these polynomials?*Be sure to cite any outside sources in APA format.
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