Description
Find the value of c that will make the expression a perfect square trinomial. 1. x^2 - 15x + c A. -7.5 B. 7.5 C. -56.25 D. 56.25
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Explanation & Answer
Please note that the subsequent trinomial:
x^2 - 2 * 15/2 x + 225/4
is a perfect square trinomial, so your answer is 225/4 namely option D.
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For this Assignment, you will consider three different scenarios. Each of these scenarios include a research question. You will examine each scenario, choose a categorical data analysis and run a sample test. To prepare for this Assignment: Review Chapters 10 and 11 of the Frankfort-Nachmias & Leon-Guerrero course text and the media program found in this week’s Learning Resources related to bivariate categorical tests. Using the SPSS software, open the Afrobarometer dataset found in this week’s Learning Resources. Next, review the Chi Square Scenarios found in this week’s Learning Resources and consider each research scenario for this Assignment. Based on the dataset you chose and for each research scenario provided, using the SPSS software, choose a categorical data analysis and run a sample test. Once you perform your categorical data analysis, 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 1- to 2-paragraph analysis of your categorical data results for each research scenario. If you are using the Afrobarometer Dataset, report the mean of Q1 (Age). In your analysis, display the data for the output. Based on your results, provide an explanation of what the implications of social change might be. Use proper APA format, citations, and referencing for your analysis, research question, and display of output. Learning Resources Required Readings Wagner, III, W. E. (2020). Using IBM® SPSS® statistics for research methods and social science statistics (7th ed.). Thousand Oaks, CA: Sage Publications. Chapter 7, "Cross-Tabulation and Measures of Association for Nominal and Ordinal Variables"Chapter 11, "Editing Output" (previously read in Week 2, 3, 4, 5. 6, 7, and 8) Frankfort-Nachmias, C., Leon-Guerrero, A., & Davis, G. (2020). Social statistics for a diverse society (9th ed.). Thousand Oaks, CA: Sage Publications. Chapter 9, “Bivariate Tables” (pp. 281-325)Chapter 10, “The Chi-Square Test and Measures of Association” (pp. 327-373) Document: Chi Square Scenarios (PDF) Use these scenarios to complete your Assignment for this week. Required Media Laureate Education (Producer). (2016a). Bivariate categorical tests [Video file]. Baltimore, MD: Author. Note: The approximate length of this media piece is 5 minutes. In this media program, Dr. Matt Jones demonstrates bivariate categorical tests using the SPSS software. Accessible player --Downloads-- Download Video w/CC Download Audio Download Transcript Optional Resources Klingenberg, B. (2016). The Chi-squared test. Retrieved from https://istats.shinyapps.io/ChiSquaredTest/ Use the following app/weblink to enter your own data and obtain an interactive visual display.
MIS 445 Business Statistics Project
R is a free statistical software that is frequently and widely used. Go to R-Project for Statistical Computing (Link ...
MIS 445 Business Statistics Project
R is a free statistical software that is frequently and widely used. Go to R-Project for Statistical Computing (Links to an external site.)Links to an external site. to download the R software to your computer (follow the instructions provided in the attached R Installation Instructions sheet). The R Project website (Links to an external site.)Links to an external site. provides a brief introduction to R that you may also want to review.
n this CT assignment, we will use R software to analyze a dataset GoogleAmazonStock.xlsx.
It contains daily closing stock prices for Google and Amazon from 8/22/2017 to 8/22/2018. When we examine stock prices (or other financial assets) we often transform them into a (simple) return series. The return series are computed by the formula: (present price/past price) - 1. The dataset contains both stock prices and return series.
1. Using R, construct time series (line) plots for both stock prices and return series. R functions ts.plot or plot can create the plot. Describe the patterns and compare the plots.
2. Based on the return series, can we claim that the mean Amazon return series is higher than that of Google?
a. What would be an appropriate test of the claim above? Explain.
b. Write the null and alternative hypotheses.
c. Using R, perform the test.
d. Write the decision in the problem context.
Take the screenshots of the R graphs and output as well as the code. Paste them into a Word document along with your answers to the questions above. Clearly label the questions and answers. Submit the Word file in Canvas.
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For this Assignment, you will consider three different scenarios. Each of these scenarios include a research question. You will examine each scenario, choose a categorical data analysis and run a sample test. To prepare for this Assignment: Review Chapters 10 and 11 of the Frankfort-Nachmias & Leon-Guerrero course text and the media program found in this week’s Learning Resources related to bivariate categorical tests. Using the SPSS software, open the Afrobarometer dataset found in this week’s Learning Resources. Next, review the Chi Square Scenarios found in this week’s Learning Resources and consider each research scenario for this Assignment. Based on the dataset you chose and for each research scenario provided, using the SPSS software, choose a categorical data analysis and run a sample test. Once you perform your categorical data analysis, 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 1- to 2-paragraph analysis of your categorical data results for each research scenario. If you are using the Afrobarometer Dataset, report the mean of Q1 (Age). In your analysis, display the data for the output. Based on your results, provide an explanation of what the implications of social change might be. Use proper APA format, citations, and referencing for your analysis, research question, and display of output. Learning Resources Required Readings Wagner, III, W. E. (2020). Using IBM® SPSS® statistics for research methods and social science statistics (7th ed.). Thousand Oaks, CA: Sage Publications. Chapter 7, "Cross-Tabulation and Measures of Association for Nominal and Ordinal Variables"Chapter 11, "Editing Output" (previously read in Week 2, 3, 4, 5. 6, 7, and 8) Frankfort-Nachmias, C., Leon-Guerrero, A., & Davis, G. (2020). Social statistics for a diverse society (9th ed.). Thousand Oaks, CA: Sage Publications. Chapter 9, “Bivariate Tables” (pp. 281-325)Chapter 10, “The Chi-Square Test and Measures of Association” (pp. 327-373) Document: Chi Square Scenarios (PDF) Use these scenarios to complete your Assignment for this week. Required Media Laureate Education (Producer). (2016a). Bivariate categorical tests [Video file]. Baltimore, MD: Author. Note: The approximate length of this media piece is 5 minutes. In this media program, Dr. Matt Jones demonstrates bivariate categorical tests using the SPSS software. Accessible player --Downloads-- Download Video w/CC Download Audio Download Transcript Optional Resources Klingenberg, B. (2016). The Chi-squared test. Retrieved from https://istats.shinyapps.io/ChiSquaredTest/ Use the following app/weblink to enter your own data and obtain an interactive visual display.
MIS 445 Business Statistics Project
R is a free statistical software that is frequently and widely used. Go to R-Project for Statistical Computing (Link ...
MIS 445 Business Statistics Project
R is a free statistical software that is frequently and widely used. Go to R-Project for Statistical Computing (Links to an external site.)Links to an external site. to download the R software to your computer (follow the instructions provided in the attached R Installation Instructions sheet). The R Project website (Links to an external site.)Links to an external site. provides a brief introduction to R that you may also want to review.
n this CT assignment, we will use R software to analyze a dataset GoogleAmazonStock.xlsx.
It contains daily closing stock prices for Google and Amazon from 8/22/2017 to 8/22/2018. When we examine stock prices (or other financial assets) we often transform them into a (simple) return series. The return series are computed by the formula: (present price/past price) - 1. The dataset contains both stock prices and return series.
1. Using R, construct time series (line) plots for both stock prices and return series. R functions ts.plot or plot can create the plot. Describe the patterns and compare the plots.
2. Based on the return series, can we claim that the mean Amazon return series is higher than that of Google?
a. What would be an appropriate test of the claim above? Explain.
b. Write the null and alternative hypotheses.
c. Using R, perform the test.
d. Write the decision in the problem context.
Take the screenshots of the R graphs and output as well as the code. Paste them into a Word document along with your answers to the questions above. Clearly label the questions and answers. Submit the Word file in Canvas.
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