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QSO 530: Z or t Tests
Problem 1
A random sample of 25 deliveries from a downtown Chicago department store
resulted in sample information of x =10.2 miles and s = 5.7 miles. At the 0.05 level of
significance, does this show sufficient evidence to reject the claim that the average
delivery is no more than 8.5 miles?
Null and Alternate Hypothesis
H0 : = 8.5
H 0 : 8.5
This corresponds to a left-tailed test, for which a t-test for one mean, with unk...
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Written Midterm Review 2 2
Please be sure to show all your work on this exam, including any formulas used, calculations conducted, and drawings used ...
Written Midterm Review 2 2
Please be sure to show all your work on this exam, including any formulas used, calculations conducted, and drawings used to arrive at
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For this Introduction to Quantitative Analysis Assignment, you will explore how to visually display data for optimal use. ...
Statistics Question
For this Introduction to Quantitative Analysis Assignment, you will explore how to visually display data for optimal use. To prepare for this Assignment: Review this week’s Learning Resources and consider visual displays of data. For additional support, review the Skill Builder: Unit of Analysis and the Skill Builder: Levels of Measurement, which you can find by navigating back to your Blackboard Course Home Page. From there, locate the Skill Builder link in the left navigation pane. 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. From the dataset you chose, choose one categorical and one continuous variable and perform the appropriate visual display for each variable. Once you visually display each variable, review Chapter 11 of the Wagner text to understand how to copy and paste your output into your Word document. For this Assignment: Write a 2- to 3-paragraph analysis of your results and include a copy and paste of the appropriate visual display of the data into your document. Based on the results of your data, provide a brief explanation of what the implications for social change might be. 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 X1SES. Use appropriate APA format. Refer to the APA manual for appropriate citation. Learning Resources Required Readings Frankfort-Nachmias, C., Leon-Guerrero, A., & Davis, G. (2020). Social statistics for a diverse society (9th ed.). Thousand Oaks, CA: Sage Publications. Chapter 2, “The Organization and Graphic Presentation Data” (pp. 27-74) Wagner, III, W. E. (2020). Using IBM® SPSS® statistics for research methods and social science statistics (7th ed.). Thousand Oaks, CA: Sage Publications. Chapter 5, “Charts and Graphs” Chapter 11, “Editing Output” Walden University Writing Center. (n.d.). General guidance on data displays. Retrieved from http://waldenwritingcenter.blogspot.com/2013/02/general-guidance-on-data-displays.html Use this website to guide you as you provide appropriate APA formatting and citations for data displays. Datasets Your instructor will post the datasets for the course in the Doc Sharing section and in an Announcement. Your instructor may also recommend using a different dataset from the ones provided here. Required Media Laureate Education (Producer). (2016j). Visual displays of data [Video file]. Baltimore, MD: Author. Note: The approximate length of this media piece is 9 minutes. In this media program, Dr. Matt Jones discusses frequency distributions. Focus on how his explanation might support your analysis in this week’s Assignment. Accessible player --Downloads-- Download Video w/CC Download Audio Download Transcript Optional Resources Skill Builders: Visual Displays for Continuous VariablesVisual Displays for Categorical Variables To access these Skill Builders, navigate back to your Blackboard Course Home page, and locate “Skill Builders” in the left navigation pane. From there, click on the relevant Skill Builder link for this week. You are encouraged to click through these and all Skill Builders to gain additional practice with these concepts. Doing so will bolster your knowledge of the concepts you’re learning this week and throughout the course.
PSY 330 ASU Statistics Methods Using SPSS Software Worksheet
Hi,I have this extra credit assignment due and needed some help, I struggles with this class and I am on the verge of fail ...
PSY 330 ASU Statistics Methods Using SPSS Software Worksheet
Hi,I have this extra credit assignment due and needed some help, I struggles with this class and I am on the verge of failing so some help with the assignment would be nice. This does requre SPSS software.
MAT 122 Colorado State University Global Campus Time and Activity Relation Discussion
wk 1) Research an advertised truck rental price plan that does not include unlimited miles and provide the details of the ...
MAT 122 Colorado State University Global Campus Time and Activity Relation Discussion
wk 1) Research an advertised truck rental price plan that does not include unlimited miles and provide the details of the advertisement. (e.g., $50/day with 200 miles included and $0.10 per additional mile.)Create your own similar truck rental price plan with different values. Be sure to not use the exact same values used in a previous post.Based on your plan, write an equation that can be used to determine the daily cost, D(t) of the rental when t miles are needed, and use that equation to calculate the total cost when 300, 1,000, and 2,000 miles are used.In your responses to peers, compare the total costs you calculated in Part 3 with those of at least two peers. Discuss the differences you notice and how they could have been foreseen by just comparing the formulas.=================================================wk 2) Use an outside source to search for a quadratic equation that models something from your daily life. (Be sure to cite the source you use.)Solve the equation in two ways.Discuss which method you liked better and why.In your responses to peers, compare and contrast your preferences for how to solve quadratic equations.=====================================================wk 3) Your task for this discussion is as follows:Fill in the table with what you are typically doing during each of the following times.Time (T) Activity (A)4 AM 8 AM 12 PM 4 PM 8 PM 12 AM Represent your relation (T, A) in an alternative manner other than the table created in part (a). (i.e., as ordered pairs or with a mapping diagram.)Determine whether or not your relation is a function. Why or why not?In your responses to peers, comment on whether or not you think their relations are also functions.
STAT 3215 Rasmussen College Salary Distributions of Jobs in Minnesota Worksheet
CompetencyGiven a real-life application, develop a hypothesis test for a population parameter and its interpretation.Instr ...
STAT 3215 Rasmussen College Salary Distributions of Jobs in Minnesota Worksheet
CompetencyGiven a real-life application, develop a hypothesis test for a population parameter and its interpretation.InstructionsScenario (information repeated for deliverable 01, 03, and 04)A major client of your company is interested in the salary distributions of jobs in the state of Minnesota that range from $30,000 to $200,000 per year. As a Business Analyst, your boss asks you to research and analyze the salary distributions. You are given a spreadsheet that contains the following information:A listing of the jobs by titleThe salary (in dollars) for each jobIn prior engagements, you have already explained to your client about the basic statistics and discussed the importance of constructing confidence intervals for the population mean. Your client says that he remembers a little bit about hypothesis testing, but he is a little fuzzy. He asks you to give him the full explanation of all steps in a hypothesis testing and wants your conclusion about a claim that the average salary for all jobs in the state of Minnesota is less than $74,500 and a second claim that the average salary for all jobs in the state of Minnesota is greater than $70,500.Background information on the DataThe data set in the spreadsheet consists of 364 records that you will be analyzing from the Bureau of Labor Statistics. The data set contains a listing of several jobs titles with yearly salaries ranging from approximately $30,000 to $200,000 for the state of Minnesota.What to SubmitYour boss wants you to submit the spreadsheet with the completed calculations, answers, and analysis.Grading RubricFFCBA01234Not SubmittedNo PassCompetenceProficiencyMasteryNot SubmittedDid not correctly solve a majority of the problems or at least one problem left blank.Correctly solved a majority of the problems.Correctly solved almost all the problems.All problems are solved correctly.Not SubmittedVery few steps are provided to explain how to solve the problem OR the steps provided have several errors.Fairly complete and detailed steps are provided to explain how to solve the problem OR the steps provided have some errors.Mostly complete and detailed steps are provided to explain how to solve the problem.Complete and detailed steps are provided to explain how to solve the problem.Not SubmittedExplanations generally lack a basic understanding of the statistical concepts or lack of proper terminology.Explanations demonstrate a basic understanding of most of the statistical concepts and terminology, but some explanations may be incomplete or incorrect.Explanations demonstrate a proficient understanding of most of the statistical concepts and terminology, but with small errors.Explanations demonstrate a mastery of understanding of the statistical concepts and terminology.Not SubmittedThe majority of variables, equations, and expressions are not properly formatted.The majority of variables, equations, and expressions are properly formatted.Almost all variables, equations, and expressions are properly formatted.All variables, equations, and expressions are properly formatted.
Review the video on Normal Distribution in the Calculations section of the "Statistics Visual Learner" media piece.
Bob compares his SAT Verbal score of 400 to Marge's ACT Verbal score of 20. "I beat you," he exclaims. "My score is 20 tim ...
Review the video on Normal Distribution in the Calculations section of the "Statistics Visual Learner" media piece.
Bob compares his SAT Verbal score of 400 to Marge's ACT Verbal score of 20. "I beat you," he exclaims. "My score is 20 times your score!" Although his multiplication is good, his logic is faulty. Explain why.
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Written Midterm Review 2 2
Please be sure to show all your work on this exam, including any formulas used, calculations conducted, and drawings used ...
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For this Introduction to Quantitative Analysis Assignment, you will explore how to visually display data for optimal use. ...
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For this Introduction to Quantitative Analysis Assignment, you will explore how to visually display data for optimal use. To prepare for this Assignment: Review this week’s Learning Resources and consider visual displays of data. For additional support, review the Skill Builder: Unit of Analysis and the Skill Builder: Levels of Measurement, which you can find by navigating back to your Blackboard Course Home Page. From there, locate the Skill Builder link in the left navigation pane. 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. From the dataset you chose, choose one categorical and one continuous variable and perform the appropriate visual display for each variable. Once you visually display each variable, review Chapter 11 of the Wagner text to understand how to copy and paste your output into your Word document. For this Assignment: Write a 2- to 3-paragraph analysis of your results and include a copy and paste of the appropriate visual display of the data into your document. Based on the results of your data, provide a brief explanation of what the implications for social change might be. 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 X1SES. Use appropriate APA format. Refer to the APA manual for appropriate citation. Learning Resources Required Readings Frankfort-Nachmias, C., Leon-Guerrero, A., & Davis, G. (2020). Social statistics for a diverse society (9th ed.). Thousand Oaks, CA: Sage Publications. Chapter 2, “The Organization and Graphic Presentation Data” (pp. 27-74) Wagner, III, W. E. (2020). Using IBM® SPSS® statistics for research methods and social science statistics (7th ed.). Thousand Oaks, CA: Sage Publications. Chapter 5, “Charts and Graphs” Chapter 11, “Editing Output” Walden University Writing Center. (n.d.). General guidance on data displays. Retrieved from http://waldenwritingcenter.blogspot.com/2013/02/general-guidance-on-data-displays.html Use this website to guide you as you provide appropriate APA formatting and citations for data displays. Datasets Your instructor will post the datasets for the course in the Doc Sharing section and in an Announcement. Your instructor may also recommend using a different dataset from the ones provided here. Required Media Laureate Education (Producer). (2016j). Visual displays of data [Video file]. Baltimore, MD: Author. Note: The approximate length of this media piece is 9 minutes. In this media program, Dr. Matt Jones discusses frequency distributions. Focus on how his explanation might support your analysis in this week’s Assignment. Accessible player --Downloads-- Download Video w/CC Download Audio Download Transcript Optional Resources Skill Builders: Visual Displays for Continuous VariablesVisual Displays for Categorical Variables To access these Skill Builders, navigate back to your Blackboard Course Home page, and locate “Skill Builders” in the left navigation pane. From there, click on the relevant Skill Builder link for this week. You are encouraged to click through these and all Skill Builders to gain additional practice with these concepts. Doing so will bolster your knowledge of the concepts you’re learning this week and throughout the course.
PSY 330 ASU Statistics Methods Using SPSS Software Worksheet
Hi,I have this extra credit assignment due and needed some help, I struggles with this class and I am on the verge of fail ...
PSY 330 ASU Statistics Methods Using SPSS Software Worksheet
Hi,I have this extra credit assignment due and needed some help, I struggles with this class and I am on the verge of failing so some help with the assignment would be nice. This does requre SPSS software.
MAT 122 Colorado State University Global Campus Time and Activity Relation Discussion
wk 1) Research an advertised truck rental price plan that does not include unlimited miles and provide the details of the ...
MAT 122 Colorado State University Global Campus Time and Activity Relation Discussion
wk 1) Research an advertised truck rental price plan that does not include unlimited miles and provide the details of the advertisement. (e.g., $50/day with 200 miles included and $0.10 per additional mile.)Create your own similar truck rental price plan with different values. Be sure to not use the exact same values used in a previous post.Based on your plan, write an equation that can be used to determine the daily cost, D(t) of the rental when t miles are needed, and use that equation to calculate the total cost when 300, 1,000, and 2,000 miles are used.In your responses to peers, compare the total costs you calculated in Part 3 with those of at least two peers. Discuss the differences you notice and how they could have been foreseen by just comparing the formulas.=================================================wk 2) Use an outside source to search for a quadratic equation that models something from your daily life. (Be sure to cite the source you use.)Solve the equation in two ways.Discuss which method you liked better and why.In your responses to peers, compare and contrast your preferences for how to solve quadratic equations.=====================================================wk 3) Your task for this discussion is as follows:Fill in the table with what you are typically doing during each of the following times.Time (T) Activity (A)4 AM 8 AM 12 PM 4 PM 8 PM 12 AM Represent your relation (T, A) in an alternative manner other than the table created in part (a). (i.e., as ordered pairs or with a mapping diagram.)Determine whether or not your relation is a function. Why or why not?In your responses to peers, comment on whether or not you think their relations are also functions.
STAT 3215 Rasmussen College Salary Distributions of Jobs in Minnesota Worksheet
CompetencyGiven a real-life application, develop a hypothesis test for a population parameter and its interpretation.Instr ...
STAT 3215 Rasmussen College Salary Distributions of Jobs in Minnesota Worksheet
CompetencyGiven a real-life application, develop a hypothesis test for a population parameter and its interpretation.InstructionsScenario (information repeated for deliverable 01, 03, and 04)A major client of your company is interested in the salary distributions of jobs in the state of Minnesota that range from $30,000 to $200,000 per year. As a Business Analyst, your boss asks you to research and analyze the salary distributions. You are given a spreadsheet that contains the following information:A listing of the jobs by titleThe salary (in dollars) for each jobIn prior engagements, you have already explained to your client about the basic statistics and discussed the importance of constructing confidence intervals for the population mean. Your client says that he remembers a little bit about hypothesis testing, but he is a little fuzzy. He asks you to give him the full explanation of all steps in a hypothesis testing and wants your conclusion about a claim that the average salary for all jobs in the state of Minnesota is less than $74,500 and a second claim that the average salary for all jobs in the state of Minnesota is greater than $70,500.Background information on the DataThe data set in the spreadsheet consists of 364 records that you will be analyzing from the Bureau of Labor Statistics. The data set contains a listing of several jobs titles with yearly salaries ranging from approximately $30,000 to $200,000 for the state of Minnesota.What to SubmitYour boss wants you to submit the spreadsheet with the completed calculations, answers, and analysis.Grading RubricFFCBA01234Not SubmittedNo PassCompetenceProficiencyMasteryNot SubmittedDid not correctly solve a majority of the problems or at least one problem left blank.Correctly solved a majority of the problems.Correctly solved almost all the problems.All problems are solved correctly.Not SubmittedVery few steps are provided to explain how to solve the problem OR the steps provided have several errors.Fairly complete and detailed steps are provided to explain how to solve the problem OR the steps provided have some errors.Mostly complete and detailed steps are provided to explain how to solve the problem.Complete and detailed steps are provided to explain how to solve the problem.Not SubmittedExplanations generally lack a basic understanding of the statistical concepts or lack of proper terminology.Explanations demonstrate a basic understanding of most of the statistical concepts and terminology, but some explanations may be incomplete or incorrect.Explanations demonstrate a proficient understanding of most of the statistical concepts and terminology, but with small errors.Explanations demonstrate a mastery of understanding of the statistical concepts and terminology.Not SubmittedThe majority of variables, equations, and expressions are not properly formatted.The majority of variables, equations, and expressions are properly formatted.Almost all variables, equations, and expressions are properly formatted.All variables, equations, and expressions are properly formatted.
Review the video on Normal Distribution in the Calculations section of the "Statistics Visual Learner" media piece.
Bob compares his SAT Verbal score of 400 to Marge's ACT Verbal score of 20. "I beat you," he exclaims. "My score is 20 tim ...
Review the video on Normal Distribution in the Calculations section of the "Statistics Visual Learner" media piece.
Bob compares his SAT Verbal score of 400 to Marge's ACT Verbal score of 20. "I beat you," he exclaims. "My score is 20 times your score!" Although his multiplication is good, his logic is faulty. Explain why.
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