The answer to the precalculus problem below please
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P1 = (-4,1)
P2= (5,4)
The midpoint is?
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STAT 271 Prince Sultan University Forecasting Time Series Data Project
Steps:
1. Select recent case study with time series price data which includes one
items to be analysed. You can use a da ...
STAT 271 Prince Sultan University Forecasting Time Series Data Project
Steps:
1. Select recent case study with time series price data which includes one
items to be analysed. You can use a data from your area of specialization (accounting) and
excel software. 2. Use sample size, which is not more than 15 and not less than 10 observations. 3. After reading section 16.1 from your both eBook and slides, identify the
following for your dataset:
i. Time series component. You can draw line chart to support your answer.
ii. Compute the simple Index number for your data (use period one (year,
day,…etc.) as a base period).
iii. Determine the actual percentage growth between the base period and the
tenth period in your data.
iv. Determine the actual percentage growth between period six and the tenth
period in your data.
4. Discuss your results in each point as stated below. Notes: 1. You will be required to write and submit a short paper (Max. 4 pages, typewritten
and have at least a 12-point font – Times New Roman) that describes your case
study. 2. The paper should be presented as follows:
• Introduction
• Research methodology
• Research findings and discussion (Step 3) • Appendix contains the data used in your research (if you include the data
in the analysis part then you don’t need insert it in the appendix)
• References in APA style .3. To collect your data you can refer to PSU database or any other database. 4. Plagiarism will tracked and
similarity should not exceeds 20%.
University of California Los Angeles Characteristics of Afro Barometer Dataset Discussion
To prepare for this Assignment: Review the Learning Resources as well as the SPSS resources found in this week’s Learni ...
University of California Los Angeles Characteristics of Afro Barometer Dataset Discussion
To prepare for this Assignment: Review the Learning Resources as well as the SPSS resources found in this week’s Learning Resources.Review, download, and install the SPSS software on your computer using the IBM SPSS Installation and Registration document for PC or for MAC in this week’s Learning Resources.Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you choose) found in this week’s Learning Resources and then choose two variables that interest you. For this Assignment: Write a 1- to 2-page summary and include the following: Early in your Assignment, when you relate which dataset you analyzed, please include the mean of the following variables. If you are using the Afrobarometer Dataset, report the mean of Q1 (Age). If you are using the HS Long Survey Dataset, report the mean of X1Par1Edu.A description of what the each of the variables measure.A description of the unit of analysis.A description and explanation of the levels of measurement for each variable (i.e., nominal, ordinal, interval, ratio).Explain how you might conceive these variables to be used to answer a social change question. What might be the implications for social change? Support your summary using appropriate scholarly citations and references. Use proper APA format.
Finance
Complete the Chapter 18 Minicase on page 788 in your textbook. After reading the case, you will complete questions A throu ...
Finance
Complete the Chapter 18 Minicase on page 788 in your textbook. After reading the case, you will complete questions A through D only. In addition to your textbook, please provide at least three scholarly sources to support your answers.Business School Assignment InstructionsThe requirements below must be met for your paper to be accepted and graded:Write between 750 – 1,250 words (approximately 3 – 5 pages) using Microsoft Word in APA style, see example below.Use font size 12 and 1” margins.Include cover page and reference page.At least 80% of your paper must be original content/writing.No more than 20% of your content/information may come from references.Use at least three references from outside the course material; one reference must be from EBSCOhost. Text book, lectures, and other materials in the course may be used, but are not counted toward the three reference requirement.Cite all reference material (data, dates, graphs, quotes, paraphrased words, values, etc.) in the paper and list on a reference page in APA style.References must come from sources such as scholarly journals found in EBSCOhost or on Google Scholar, government websites and publications, reputable news media (e.g. CNN , The Wall Street Journal, The New York Times) websites and publications, etc. Sources such as Wikis, Yahoo Answers, eHow, blogs, etc. are not acceptable for academic writing.
RES 710 University of Phoenix Social Statistics for A Diverse Society Discussion
Frankfort-Nachmias & Leon-Guerrero (2018) explain “statistics is a set of procedures used by social scientists to organi ...
RES 710 University of Phoenix Social Statistics for A Diverse Society Discussion
Frankfort-Nachmias & Leon-Guerrero (2018) explain “statistics is a set of procedures used by social scientists to organize, summarize, and communicate numerical information. Only information represented by numbers can be the subject of statistical analysis” (p.18).Write a 250- to 300-word response to the following:How do you plan to use what you learn in this course in your personal or professional life?What specific information are you hoping to learn to apply in your dissertation?Reference: Frankfort-Nachmias, C., & Leon-Guerrero, A. (2018). Social statistics for a diverse society (8th ed.). Thousand Oaks, CA: SAGE Publications, Inc.
Harvard University Design Method Worksheet
Answer the following problems showing your work and explaining (or analyzing) your results. Submit your work in a typed Mi ...
Harvard University Design Method Worksheet
Answer the following problems showing your work and explaining (or analyzing) your results. Submit your work in a typed Microsoft Word document.
Choose one design method from the list below. Using your example, make a list of 2 or 3 advantages and 2 or 3 disadvantages for using the method. (2 pts)
Simple random sampling
Systematic sampling
Stratified sampling
Cluster sampling
The name of each student in a class is written on a separate card. The cards are placed in a bag. Three names are picked from the bag. Identify which type of sampling is used and why. (2 pts)
A phone company obtains an alphabetical list of names of homeowners in a city. They select every 25th person from the list until a sample of 100 is obtained. They then call these 100 people to advertise their services. Does this sampling plan result in a random sample? What type of sample is it? Explain. (2 pts)
The manager of a company wants to investigate job satisfaction among its employees. One morning after a meeting, she talks to all 25 employees who attended. Does this sampling plan result in a random sample? What type of sample is it? Explain. (2 pts)
An education expert is researching teaching methods and wishes to interview teachers from a particular school district. She randomly selects 10 schools from the district and interviews all of the teachers at the selected schools. Does this sampling plan result in a random sample? What type of sample is it? Explain. (2 pts)
Fifty-one sophomore, 42 junior, and 55 senior students are selected from classes with 516, 428, and 551 students respectively. Identify which type of sampling is used and explain your reasoning. (2 pts)
You want to investigate the workplace attitudes concerning new policies that were put into effect. You have funding and support to contact at most 100 people. Choose a design method and discuss the following:
Describe the sample design method you will use and why. (2 pts)
Specify the population and sample group. Will you include everyone who works for the company, certain departments, full or part-time employees, etc.? (2 pts)
Discuss the bias, on the part of both the researcher and participants. (2 pts)
A local newspaper wanted to gather information about house sales in the area. It distributed 25,000 electronic surveys to its readers asking questions about house sales in the past 6 months. Of the surveys sent out, 3.2% were returned. The results found that 92% of people did not sell their house in the past 6 months and 85% of people would expect a loss if they sold their house. The writer wants to use these results to conclude that the housing market is declining, and we are headed for a recession.
Explain the bias and sampling error in this study. (2 pts)
Should the writer conclude that the housing market is declining based upon this data? (2 pts)
Why or why not? (2 pts)
A homeowner is getting carpet installed. The installer is charging her for 250 square feet. She thinks this is more than the actual space being carpeted. She asks a second installer to measure the space to confirm her doubt. Write the null hypothesis Ho and the alternative hypothesis Ha. (2 pts)
Drug A is the usual treatment for depression in graduate students. Pfizer has a new drug, Drug B, that it thinks may be more effective. You have been hired to design the test program. As part of your project briefing, you decide to explain the logic of statistical testing to the people who are going to be working for you.
Write the research hypothesis and the null hypothesis. (2 pts)
Then construct a table like the one below, displaying the outcomes that would constitute Type I and Type II error. (2 pts)
Write a paragraph explaining which error would be more severe, and why. (2 pts)
Cough-a-Lot children’s cough syrup is supposed to contain 6 ounces of medicine per bottle. However, since the filling machine is not always precise, there can be variation from bottle to bottle. The amounts in the bottles are normally distributed with ? = 0.3 ounces. A quality assurance inspector measures 10 bottles and finds the following (in ounces):
5.95 6.10 5.98 6.01 6.25 5.85 5.91 6.05 5.88 5.91
Are the results enough evidence to conclude that the bottles are not filled adequately at the labeled amount of 6 ounces per bottle?
State the hypothesis you will test. (2 pts)
Calculate the test statistic. (2 pts)
Find the P-value. (2 pts)
What is the conclusion? (2 pts)
Calculate a Z score when X = 20, ? = 17, and ? = 3.4. (2 pts)
Using a standard normal probabilities table, interpret the results for the Z score in Problem 12. (2 pts)
Your babysitter claims that she is underpaid given the current market. Her hourly wage is $12 per hour. You do some research and discover that the average wage in your area is $14 per hour with a standard deviation of 1.9. Calculate the Z score and use the table to find the standard normal probability. Based on your findings, should you give her a raise? Explain your reasoning as to why or why not. (2 pts)
Tutor O-Rama claims that their services will raise student SAT math scores at least 50 points. The average score on the math portion of the SAT is ?=350 and ?=35. The 100 students who completed the tutoring program had an average score of 385 points.
Is the students’ average score of 385 points significant at the 5% and 1% levels to support Tutor O-Rama’s claim of at least a 50-point increase in the SAT score? (2 pts)
Is the Tutor O-Rama students’ average score of 385 points significantly different at the 5% and 1% levels from the average score of 350 points on the math portion of the SAT? What conclusion can you make, based on your results, about the effectiveness of Tutor O-Rama’s tutoring? (2 pts)
Strayer University Descriptive Statistics Paper
Visit one of the following newspapers’ websites: USA Today, New York Times, Wall Street Journal, or Washington Post. ...
Strayer University Descriptive Statistics Paper
Visit one of the following newspapers’ websites: USA Today, New York Times, Wall Street Journal, or Washington Post. Select an article that uses statistical data related to a current event, your major, your current field, or your future career goal. The chosen article must have a publication date during this quarter.
The article should use one of the following categories of descriptive statistics:
Measures of Frequency - Counting Rules, Percent, Frequency, Frequency Distributions
Measures of Central Tendency - Mean, Median, Mode
Measures of Dispersion or Variation - Range, Variance, Standard Deviation
Measures of Position - Percentile, Quartiles
Write a two to three (2-3) page paper in which you:
Write a summary of the article.
Explain how the article uses descriptive statistics.
Explain how the article applies to the real world, your major, your current job, or your future career goal.
Analyze the reasons why the article chose to use the various types of data shared in the article.
Format your paper according to the Strayer Writing Standards. Please take a moment to review the SWS documentation for details.
Click here to view the grading rubric for this assignment.
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STAT 271 Prince Sultan University Forecasting Time Series Data Project
Steps:
1. Select recent case study with time series price data which includes one
items to be analysed. You can use a da ...
STAT 271 Prince Sultan University Forecasting Time Series Data Project
Steps:
1. Select recent case study with time series price data which includes one
items to be analysed. You can use a data from your area of specialization (accounting) and
excel software. 2. Use sample size, which is not more than 15 and not less than 10 observations. 3. After reading section 16.1 from your both eBook and slides, identify the
following for your dataset:
i. Time series component. You can draw line chart to support your answer.
ii. Compute the simple Index number for your data (use period one (year,
day,…etc.) as a base period).
iii. Determine the actual percentage growth between the base period and the
tenth period in your data.
iv. Determine the actual percentage growth between period six and the tenth
period in your data.
4. Discuss your results in each point as stated below. Notes: 1. You will be required to write and submit a short paper (Max. 4 pages, typewritten
and have at least a 12-point font – Times New Roman) that describes your case
study. 2. The paper should be presented as follows:
• Introduction
• Research methodology
• Research findings and discussion (Step 3) • Appendix contains the data used in your research (if you include the data
in the analysis part then you don’t need insert it in the appendix)
• References in APA style .3. To collect your data you can refer to PSU database or any other database. 4. Plagiarism will tracked and
similarity should not exceeds 20%.
University of California Los Angeles Characteristics of Afro Barometer Dataset Discussion
To prepare for this Assignment: Review the Learning Resources as well as the SPSS resources found in this week’s Learni ...
University of California Los Angeles Characteristics of Afro Barometer Dataset Discussion
To prepare for this Assignment: Review the Learning Resources as well as the SPSS resources found in this week’s Learning Resources.Review, download, and install the SPSS software on your computer using the IBM SPSS Installation and Registration document for PC or for MAC in this week’s Learning Resources.Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you choose) found in this week’s Learning Resources and then choose two variables that interest you. For this Assignment: Write a 1- to 2-page summary and include the following: Early in your Assignment, when you relate which dataset you analyzed, please include the mean of the following variables. If you are using the Afrobarometer Dataset, report the mean of Q1 (Age). If you are using the HS Long Survey Dataset, report the mean of X1Par1Edu.A description of what the each of the variables measure.A description of the unit of analysis.A description and explanation of the levels of measurement for each variable (i.e., nominal, ordinal, interval, ratio).Explain how you might conceive these variables to be used to answer a social change question. What might be the implications for social change? Support your summary using appropriate scholarly citations and references. Use proper APA format.
Finance
Complete the Chapter 18 Minicase on page 788 in your textbook. After reading the case, you will complete questions A throu ...
Finance
Complete the Chapter 18 Minicase on page 788 in your textbook. After reading the case, you will complete questions A through D only. In addition to your textbook, please provide at least three scholarly sources to support your answers.Business School Assignment InstructionsThe requirements below must be met for your paper to be accepted and graded:Write between 750 – 1,250 words (approximately 3 – 5 pages) using Microsoft Word in APA style, see example below.Use font size 12 and 1” margins.Include cover page and reference page.At least 80% of your paper must be original content/writing.No more than 20% of your content/information may come from references.Use at least three references from outside the course material; one reference must be from EBSCOhost. Text book, lectures, and other materials in the course may be used, but are not counted toward the three reference requirement.Cite all reference material (data, dates, graphs, quotes, paraphrased words, values, etc.) in the paper and list on a reference page in APA style.References must come from sources such as scholarly journals found in EBSCOhost or on Google Scholar, government websites and publications, reputable news media (e.g. CNN , The Wall Street Journal, The New York Times) websites and publications, etc. Sources such as Wikis, Yahoo Answers, eHow, blogs, etc. are not acceptable for academic writing.
RES 710 University of Phoenix Social Statistics for A Diverse Society Discussion
Frankfort-Nachmias & Leon-Guerrero (2018) explain “statistics is a set of procedures used by social scientists to organi ...
RES 710 University of Phoenix Social Statistics for A Diverse Society Discussion
Frankfort-Nachmias & Leon-Guerrero (2018) explain “statistics is a set of procedures used by social scientists to organize, summarize, and communicate numerical information. Only information represented by numbers can be the subject of statistical analysis” (p.18).Write a 250- to 300-word response to the following:How do you plan to use what you learn in this course in your personal or professional life?What specific information are you hoping to learn to apply in your dissertation?Reference: Frankfort-Nachmias, C., & Leon-Guerrero, A. (2018). Social statistics for a diverse society (8th ed.). Thousand Oaks, CA: SAGE Publications, Inc.
Harvard University Design Method Worksheet
Answer the following problems showing your work and explaining (or analyzing) your results. Submit your work in a typed Mi ...
Harvard University Design Method Worksheet
Answer the following problems showing your work and explaining (or analyzing) your results. Submit your work in a typed Microsoft Word document.
Choose one design method from the list below. Using your example, make a list of 2 or 3 advantages and 2 or 3 disadvantages for using the method. (2 pts)
Simple random sampling
Systematic sampling
Stratified sampling
Cluster sampling
The name of each student in a class is written on a separate card. The cards are placed in a bag. Three names are picked from the bag. Identify which type of sampling is used and why. (2 pts)
A phone company obtains an alphabetical list of names of homeowners in a city. They select every 25th person from the list until a sample of 100 is obtained. They then call these 100 people to advertise their services. Does this sampling plan result in a random sample? What type of sample is it? Explain. (2 pts)
The manager of a company wants to investigate job satisfaction among its employees. One morning after a meeting, she talks to all 25 employees who attended. Does this sampling plan result in a random sample? What type of sample is it? Explain. (2 pts)
An education expert is researching teaching methods and wishes to interview teachers from a particular school district. She randomly selects 10 schools from the district and interviews all of the teachers at the selected schools. Does this sampling plan result in a random sample? What type of sample is it? Explain. (2 pts)
Fifty-one sophomore, 42 junior, and 55 senior students are selected from classes with 516, 428, and 551 students respectively. Identify which type of sampling is used and explain your reasoning. (2 pts)
You want to investigate the workplace attitudes concerning new policies that were put into effect. You have funding and support to contact at most 100 people. Choose a design method and discuss the following:
Describe the sample design method you will use and why. (2 pts)
Specify the population and sample group. Will you include everyone who works for the company, certain departments, full or part-time employees, etc.? (2 pts)
Discuss the bias, on the part of both the researcher and participants. (2 pts)
A local newspaper wanted to gather information about house sales in the area. It distributed 25,000 electronic surveys to its readers asking questions about house sales in the past 6 months. Of the surveys sent out, 3.2% were returned. The results found that 92% of people did not sell their house in the past 6 months and 85% of people would expect a loss if they sold their house. The writer wants to use these results to conclude that the housing market is declining, and we are headed for a recession.
Explain the bias and sampling error in this study. (2 pts)
Should the writer conclude that the housing market is declining based upon this data? (2 pts)
Why or why not? (2 pts)
A homeowner is getting carpet installed. The installer is charging her for 250 square feet. She thinks this is more than the actual space being carpeted. She asks a second installer to measure the space to confirm her doubt. Write the null hypothesis Ho and the alternative hypothesis Ha. (2 pts)
Drug A is the usual treatment for depression in graduate students. Pfizer has a new drug, Drug B, that it thinks may be more effective. You have been hired to design the test program. As part of your project briefing, you decide to explain the logic of statistical testing to the people who are going to be working for you.
Write the research hypothesis and the null hypothesis. (2 pts)
Then construct a table like the one below, displaying the outcomes that would constitute Type I and Type II error. (2 pts)
Write a paragraph explaining which error would be more severe, and why. (2 pts)
Cough-a-Lot children’s cough syrup is supposed to contain 6 ounces of medicine per bottle. However, since the filling machine is not always precise, there can be variation from bottle to bottle. The amounts in the bottles are normally distributed with ? = 0.3 ounces. A quality assurance inspector measures 10 bottles and finds the following (in ounces):
5.95 6.10 5.98 6.01 6.25 5.85 5.91 6.05 5.88 5.91
Are the results enough evidence to conclude that the bottles are not filled adequately at the labeled amount of 6 ounces per bottle?
State the hypothesis you will test. (2 pts)
Calculate the test statistic. (2 pts)
Find the P-value. (2 pts)
What is the conclusion? (2 pts)
Calculate a Z score when X = 20, ? = 17, and ? = 3.4. (2 pts)
Using a standard normal probabilities table, interpret the results for the Z score in Problem 12. (2 pts)
Your babysitter claims that she is underpaid given the current market. Her hourly wage is $12 per hour. You do some research and discover that the average wage in your area is $14 per hour with a standard deviation of 1.9. Calculate the Z score and use the table to find the standard normal probability. Based on your findings, should you give her a raise? Explain your reasoning as to why or why not. (2 pts)
Tutor O-Rama claims that their services will raise student SAT math scores at least 50 points. The average score on the math portion of the SAT is ?=350 and ?=35. The 100 students who completed the tutoring program had an average score of 385 points.
Is the students’ average score of 385 points significant at the 5% and 1% levels to support Tutor O-Rama’s claim of at least a 50-point increase in the SAT score? (2 pts)
Is the Tutor O-Rama students’ average score of 385 points significantly different at the 5% and 1% levels from the average score of 350 points on the math portion of the SAT? What conclusion can you make, based on your results, about the effectiveness of Tutor O-Rama’s tutoring? (2 pts)
Strayer University Descriptive Statistics Paper
Visit one of the following newspapers’ websites: USA Today, New York Times, Wall Street Journal, or Washington Post. ...
Strayer University Descriptive Statistics Paper
Visit one of the following newspapers’ websites: USA Today, New York Times, Wall Street Journal, or Washington Post. Select an article that uses statistical data related to a current event, your major, your current field, or your future career goal. The chosen article must have a publication date during this quarter.
The article should use one of the following categories of descriptive statistics:
Measures of Frequency - Counting Rules, Percent, Frequency, Frequency Distributions
Measures of Central Tendency - Mean, Median, Mode
Measures of Dispersion or Variation - Range, Variance, Standard Deviation
Measures of Position - Percentile, Quartiles
Write a two to three (2-3) page paper in which you:
Write a summary of the article.
Explain how the article uses descriptive statistics.
Explain how the article applies to the real world, your major, your current job, or your future career goal.
Analyze the reasons why the article chose to use the various types of data shared in the article.
Format your paper according to the Strayer Writing Standards. Please take a moment to review the SWS documentation for details.
Click here to view the grading rubric for this assignment.
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