Category: Mathematics

  • [Solved] Discussion 3: Logical or Illogical

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    This week we are going to focus on basic logic and how you can use logic outside of the classroom. Unfortunately, many of our daily interactions include logical errors. Not all things that we call illogical are really logical errors. Consider the following four arguments. Pick **one** **and only one…

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    This week we are going to focus on basic logic and how you can use logic outside of the classroom. Unfortunately, many of our daily interactions include logical errors. Not all things that we call illogical are really logical errors.

    Consider the following four arguments.

    Pick **one** **and only one** of them.

    For the argument you chose, do you think that is a logical argument? Why do you say that?

    **Explain this in terms of the logic involved using the terminology of our text**. An argument is logical provided that the conclusion is guaranteed to be true when the premises are true. (The premises could be false, **but if they were true**, the conclusion would be forced to be true.) if the conclusion can be false while the premises are true, the argument is not logical. Arguments are determined logical or not based on how the statements work together. Arguments are logical or not and never true or false. Individual propositions are true or false and never logical or illogical. Two common errors: Illogical is not the same thing as irrational. Logical is not the same thing as reasonable. People often make those equivalences in their heads, but they are wrong.

    If you introduce terminology from other sources, you **must** provide APA style citations and references and **explain** what the terms mean. Be sure your explanation is complete. It is important to realize that an argument **can** be logical even if some of its components are false.

    **Arguments:**

    1. If it rains the sidewalk will be wet. The sidewalk is wet. Therefore it rained.
    2. I have seen homeless people stealing shopping carts from Safeway. Safeway has a shortage of shopping carts. Therefore the shortage of shopping carts is due to homelessness
    3. Joan said that she would either go to the beach or watch TV. Joan was seen at the beach. Therefore Joan did not watch TV.
    4. All Space Aliens have rust colored fur. ALF is a Space Alien. Therefore ALF has rust colored fur.

    Be sure to use terms and concepts from the content covered this week to support your decision.

    _**This is a challenging discussion question, and I expect there will be many errors, and I expect to point them out as we go. This is how we can learn this concept.**_

    **Be sure and watch the two logic videos before you try to answer this – it should clarify a couple of the common errors**

    ##### **Response Requirements**

    – By **Thursday**, respond to the prompt above in a minimum of 175 words and a maximum of 250 words..
    – By **Monday**, post a total of 3 substantive responses over 2 separate days for full participation. This includes your initial post and 2 replies to classmates or your faculty member.

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    IMG_0025.png](https://www.sweetstudy.com/files/img-0025-png-10167649 "IMG_0025.png")
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    IMG_0026.png](https://www.sweetstudy.com/files/img-0026-png-10167651 "IMG_0026.png")
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    IMG_0027.png](https://www.sweetstudy.com/files/img-0027-png-10167653 "IMG_0027.png")

    – 2 years ago

  • [Solved] Work out 3+5+2 in two different ways by completing the working below

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    – [\ \ image.jpg](https://www.sweetstudy.com/files/image-jpg-10168387 "image.jpg") – 2 years ago – 0.01

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    – [\
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    image.jpg](https://www.sweetstudy.com/files/image-jpg-10168387 "image.jpg")

    – 2 years ago
    – 0.01

  • [Solved] one page paper

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    [>Statistics homework help](https://www.sweetstudy.com/fields/mathematics-statistics) Submit a NOT MORE THAN one page response to the following question. Your submission must be in APA style complete with Cover and Reference (with at least one entry – the textbook) pages. Your submission will be che…

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    Assignment Prompt & Instructions

    [>Statistics homework help](https://www.sweetstudy.com/fields/mathematics-statistics)

    Submit a NOT MORE THAN one page response to the following question.  Your submission must be in APA style complete with Cover and Reference (with at least one entry – the textbook) pages. Your submission will be checked for plagiarism using Turnitin.  Evidence of plagiarism will at the minimum result in an automatic '0' for the assignment. Additional penalties may be levied.  Please also see SWU policies on Academic Honesty.

    All policies of the  [Benson School of Business Writing Manual](https://swu.instructure.com/courses/1789630/pages/benson-school-of-business-writing-manual) must also be observed.

    10-64. Explain, in nontechnical terms, why pairing observations, if possible, is often a more effective tool than taking independent samples.

    – 2 years ago

  • [Solved] Are you Ready for more?

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    What is the last digit of 3 to the 1,000 power. Show or explain your reasoning. – 2 years ago

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    What is the last digit of 3 to the 1,000 power. Show or explain your reasoning.

    – 2 years ago

  • [Solved] Math Unit 4 Write an Absolute Value Inequality and Solve

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    instructions will be in the files – [\ \ 1.jpg](https://www.sweetstudy.com/files/1-jpg-10169679 "1.jpg") – [\ \ 2.jpg](https://www.sweetstudy.com/files/2-jpg-10169681 "2.jpg") – 2 years ago

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    instructions will be in the files

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    1.jpg](https://www.sweetstudy.com/files/1-jpg-10169679 "1.jpg")
    – [\
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    2.jpg](https://www.sweetstudy.com/files/2-jpg-10169681 "2.jpg")

    – 2 years ago

  • [Solved] Test

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    In-depth study guidance and analytical solution covering Test.

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    Assignment Prompt & Instructions

    Full assignment prompt and step-by-step guidance are included in the downloadable solution file.

  • [Solved] M3 PSY 513

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    [>Statistics homework help](https://www.sweetstudy.com/fields/mathematics-statistics) **M3 Data Analysis Assignment** **Instructions:** ● Use this Word document to record the calculation/analysis process and the answers. ● All answers must be in this Word document ● Follow the instructions for each …

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    Assignment Prompt & Instructions

    [>Statistics homework help](https://www.sweetstudy.com/fields/mathematics-statistics)

    **M3 Data Analysis Assignment**

    **Instructions:**

    ● Use this Word document to record the calculation/analysis process and the answers.

    ● All answers must be in this Word document

    ● Follow the instructions for each specific question as each will have different requirements.

    ● Upload the document when you are finished. ( _Double-check that the document has loaded successfully and that you uploaded the correct/completed document, not the blank version!)_

    **Q1. Use the estimation method to calculate and interpret a confidence interval. (7 pts.)**

    Suppose we are sampling from a population that is known to be normal with a standard deviation of _σ_ = 5. However, the mean ![](https://www.sweetstudy.com/questions/m3-psy-513) is unknown, so we will need to estimate it using our sample mean.

    A. For a sample mean ( _X_ bar) = 20 and a sample size _N_ = 25, compute a 95% confidence interval for ![](https://www.sweetstudy.com/questions/m3-psy-513)**(Show the process you used to determine the CI bounds.)**

    B. In your own words, explain the meaning of the confidence interval you have found.

    **Q2. Use the estimation method and compare models to test a hypothesis. (9 pts.)**

    You are part of a trivia team and have tracked your team’s performance since you started playing, so you know that your scores are normally distributed with μ = 78 and σ = 12. Recently, a new person joined the team, and you think the scores have gotten better. Your goal is to answer the question: Are the new scores on average significantly better than 78? Follow the instructions below to determine the answer.

    A. Calculate the sample mean of the following 9 weeks’ worth of score data: 94, 77, 74, 75, 91, 97, 93, 87, 86.

    B. Compute a 95% confidence interval for ![](https://www.sweetstudy.com/questions/m3-psy-513)**(Show the process you used to determine the CI bounds.)**

    C. From the confidence interval you obtained, can we conclude that the team scores are significantly better since the new person joined the team? Explain your answer.

    **Q3. Manually perform a** _**z**_ **-test.** **(9 pts.)**

    According to the CDC report, the mean life expectancy in the US population is currently ( _µ_) 82.6 years with a standard deviation ( _σ_) of 10. A researcher examined the age of death of 250 people recently recorded in several Arizona hospitals and calculated the mean to be 76.5 years old. He runs a two-tailed Z test with _α_ = .05 to see if Arizona has a significantly different life expectancy compared to the US population. Because the researcher is not predicting a direction, the hypotheses should be non-directional. _For this question, leave answers in their original decimal places._

    A. What are the null hypothesis and alternative hypothesis? Write each one in words and with symbols.

    H0:

    Null Hypothesis:

    H1:

    H1: Alternative/Research Hypothesis:

    B. Calculate the _standard error_. **(Show your calculation process.)**

    _σ M_ =

    C. Calculate the Z statistic. **(Show your calculation process.)**

    _z_ =

    D. Determine the critical _z_ value(s). Explain how to find the answer.

    E. What is the conclusion of the hypothesis test (do you “reject” or “fail to reject” the null hypothesis)? What is the rationale?

    F. Answer the research question (you can use the wording from the hypotheses or explain it in another way).

    G. Calculate the standardized effect size. No need to round. **(Show your calculation process.)**

    _Cohen’s d =_(M-μ)/ σ =

    – 2 years ago

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  • [Solved] Week 2 – Course Part A

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    [>Statistics homework help](https://www.sweetstudy.com/fields/mathematics-statistics) – 2 years ago

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    [>Statistics homework help](https://www.sweetstudy.com/fields/mathematics-statistics)

    – 2 years ago

  • [Solved] Mathematics Homework

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    In-depth study guidance and analytical solution covering Mathematics Homework.

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    Full assignment prompt and step-by-step guidance are included in the downloadable solution file.

  • [Solved] case study

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    [>Statistics homework help](https://www.sweetstudy.com/fields/mathematics-statistics) see both attachments Complete Session 1 Case Study 2: 9.2 (in the textbook). Submit a Word document formatted in APA style complete with cover and reference pages. The reference page must have at least one entry: t…

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    Assignment Prompt & Instructions

    [>Statistics homework help](https://www.sweetstudy.com/fields/mathematics-statistics)

    see both attachments

    Complete Session 1 Case Study 2: 9.2 (in the textbook).

    Submit a Word document formatted in APA style complete with cover and reference pages.  The reference page must have at least one entry:  the textbook. The submission must be a form Research Report with the following parts:

    1. **Background information about the case:**  The section must provide information about the people, places, operations, business, etc. and the research question or practical business challenges for which the current research will be used to provide a solution .  This section need not be long; up to two well written paragraphs are usually sufficient.
    2. **Descriptive Statistics and Data illustration:**  In this section, the submission must summarize how the data was obtained (see chapter 1 of the text). Graphs and charts illustrating the main features of the data are also required – please see chapter 2 of the textbook.   Finally, a table of descriptive statistics accompanied by  description and explanations of the main features of the data are also required.
    3. **Statistical Method:** This part of the submission must explain the main statistical method(s) used in the case.   What is the theory behind it? What are the working hypotheses (null and alternative, etc.), what main measures, statistics, or parameters etc.,  are to be estimated or calculated using the method; how does it measures or calculates these measures, statistics, or parameters?  Finally, this section must describe how the results of the statistical method are interpreted. That is, what is it about the results that would indicate that the working hypotheses or research questions are confirmed or rejected or perhaps need to be modified and tested again?
    4. **Results:**  The actual results of the statistical method applied to the data are now presented in this section.  The section requires the student to describe the results and their theoretical interpretation based on the description of the method described in the previous section.
    5. **Conclusion and Recommendation:**  This section restates the statistical results and applies it to the business situation in the case.  It also makes practical recommendations about what steps the business in the case can take going forward based on the results of the statistical analysis.  The application and recommendation can take one or more of these general forms.

    1. The statistical results of the data analysis provided an answer(s) to the issues that the business is facing.  As a result specific policies or practical steps can be implemented in the business.
    2.  The statistical results of the data analysis provided only partial answers.  More research and tests need to be done to come up with a more useful answers for the business situation.
    3. The statistical results did not provide any useful information for the challenges that a business(s) is facing.  Recommendations for conducting new research with new approaches, data, variables, etc. may be required.
    4. Note:  there is always room for 'further research' since it is impossible for a single research case to answer every possible question.

    Note

    1. Dataset:  The data for this case is not available is not available in StatCrunch as would normally expected.  That [data set has been provided here](https://swu.instructure.com/courses/4178430/files/302833056?wrap=1).
    2. The textbook provides narratives, questions, or actual steps/questions for each case study.  While these are useful for conducting actual research, the submission must take the form of a research report and follow the above pattern.
    3. Consistent with the emphasis of this course on interpretation, an [edited version of the answer key for the case study has been provided here](https://swu.instructure.com/courses/4178430/files/302833054?wrap=1).  Students are required to use the information to enhance their understanding of the statistical methods and the results obtained.

    – [\
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    WingsofFiretxt-1.xlsx](https://www.sweetstudy.com/files/wingsoffiretxt-1-xlsx "WingsofFiretxt-1.xlsx")
    – [\
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    CaseStudy9.2-1.docx](https://www.sweetstudy.com/files/casestudy9-2-1-docx "CaseStudy9.2-1.docx")

    – 2 years ago