Bright Academic Experts

Category: Statistics

  • Multivariate Data Analysis

    Finish all question

  • Multivariate Data Analysis

    FINISH ALL QUESTIONS

  • how improve your writing skill

    Here are some simple ways to improve your writing skills (briefly):

    • Read regularly Books, articles, and blogs help you learn new words and styles.
    • Write daily Practice makes your writing clearer and faster.
    • Expand vocabulary Learn a few new words each day and use them.
    • Keep it simple Use clear and short sentences.
    • Edit your work Check grammar, spelling, and clarity.
    • Get feedback Ask teachers or friends to review your writing.
    • Learn basic grammar Strong grammar improves quality.

    Consistency is the keysmall daily practice leads to big improvement.

  • Estadistica Universitaria

    Estadistica detallada con explicacion sobre que es con metodos para ejercicios

  • Multivariate Data Analysis

    finish all questions

  • an spss version of the file

    Hi. I have an excel file with 130 responses..I need to put it in an spss version,,that is code the variables and have it clean. Just this.

  • Hi pleas I need help for my homework

    In this project, we’ll use our unique IAT random samples to demonstrate what we learned in Unit 4 (Module 11).

    WARNING: Since this project is equivalent to an exam, I will not be able to help you. However, you can still rely on your classmates for help, and I can answer clarification questions.

    Progress Check

    Use this activity to assess whether you can:

    • Describe the sampling distribution for sample proportions and use it to identify unusual (and more common) sample results.
    • Distinguish between a sample statistic and a population parameter.
    • Use StatCruch to find a confidence interval to estimate a population proportion when conditions are met.
    • Interpret the confidence interval in context.
    • Interpret the meaning of a confidence level and relate it to the margin of error when testing a claim.
    • Given a claim about a population, determine the null and alternative hypotheses.
    • Conduct a hypothesis test for a population proportion and state a conclusion in context.
    • Interpret the P-value as a conditional probability.
    • Recognize type I and type II errors and articulate the consequence of either error.

    Directions

    WARNING: The directions for Unit Projects differ from the directions for homework and lab assignments.

    Use the drop-down menu to learn about the four steps needed to complete this assignment.

    Four steps to complete the assignment

    Data

    For the remainder of this assignment, all links open in a new tab.

    • Login and open StatCrunch ().
    • Open your IAT sample data set in StatCrunch ().

    Prompts

    Each IAT data set has a different prompt for this project. Select the appropriate drop-down triangle below to see the prompt for your data set.

    Race IAT Questions & Variables

    Open for the Race prompt

    Weapons IAT Questions & Variables

    Open for the Weapons prompt

    Weight IAT Questions & Variables

    Open for the Weight prompt

    StatCrunch Directions

    Here is a PDF document with all .

    Units 6 & 7 Project Discussion Board

    Use the Units 6 & 7 Project to ask questions or provide feedback about this project.

    Review Feedback

    • Instructor feedback is only available after an assignment is graded.
    • Use these (opens in a new tab) to learn how to review feedback.

    Click the “Next” or > button to continue.

    Content by Cuyamaca College math faculty and licensed under the .

    Rubric

    Units 6/7 Project

    Units 6/7 Project
    Criteria Ratings Pts

    This criterion is linked to a Learning OutcomeQuestion 1aIAT data set is identified.

    2.5 ptsComplete0 ptsIncomplete

    2.5 pts

    This criterion is linked to a Learning OutcomeQuestion 1bStatCrunch output is provided and is correct.

    5 ptsComplete0 ptsIncomplete

    5 pts

    This criterion is linked to a Learning OutcomeQuestion 1cCorrect work is shown for checking conditions

    2.5 ptsComplete0 ptsIncomplete

    2.5 pts

    This criterion is linked to a Learning OutcomeQuestion 1dConfidence interval was correctly stated in context.

    5 ptsComplete0 ptsIncomplete

    5 pts

    This criterion is linked to a Learning OutcomeQuestion 1eQuestion was correctly answered with explanation

    2.5 ptsComplete0 ptsIncomplete

    2.5 pts

    This criterion is linked to a Learning OutcomeQuestion 2aHypotheses were correctly stated in words and symbols

    5 ptsComplete3 ptsPartial CreditEither the words or symbols are missing/incorrect.

    0 ptsIncomplete

    5 pts

    This criterion is linked to a Learning OutcomeQuestion 2bCorrect work is shown for checking conditions

    2.5 ptsComplete0 ptsIncomplete

    2.5 pts

    This criterion is linked to a Learning OutcomeQuestion 2cStatCrunch output is provided and is correct.

    5 ptsComplete0 ptsIncomplete

    5 pts

    This criterion is linked to a Learning OutcomeQuestion 2dP-value was provided and interpreted correctly.

    5 ptsComplete0 ptsIncomplete

    5 pts

    This criterion is linked to a Learning OutcomeQuestion 2eA correct conclusion was provided that included the p-value and referenced the population and the appropriate variable.

    5 ptsComplete3 ptsPartial Credit

    0 ptsIncomplete

    5 pts

    This criterion is linked to a Learning OutcomeQuestion 3aCorrectly identified the type of error with a brief explanation

    2.5 ptsComplete1.5 ptsPartial Credit

    0 ptsIncomplete

    2.5 pts

    This criterion is linked to a Learning OutcomeQuestion 3bError type was interpreted in the context of the problem.

    2.5 ptsComplete1.5 ptsPartial Credit

    0 ptsIncomplete

    2.5 pts

    This criterion is linked to a Learning OutcomeSelf-evaluationThe final draft begins (or ends) with a self-evaluation of your first draft. The self-evaluation describes how you demonstrated attainment of the learning objectives in the “Progress Check” section of the assignment, OR what you needed to correct in order to demonstrate attainment of the learning objectives.

    5 ptsComplete3 ptsPartial CreditThe self-evaluation does not describe how you demonstrated attainment of the learning objectives in the “Progress Check” section of the assignment, or what you needed to correct in order to demonstrate attainment of the learning objectives.

    0 ptsIncomplete

    5 pts

    Total Points: 50

  • Statistics Question

    Some features of this activity may not work well on a cell phone or tablet. We highly recommend that you complete this activity on a computer.

    A list of StatCrunch directions is provided at the bottom of this page.

    Context

    In 2015 college students at a large state university completed a survey about their academic and personal life. Questions ranged from “How many credits are you registered for this semester?” to “Would you define yourself as a vegetarian?”

    The researcher randomly selected 325 students from the university; 312 responded to the survey.

    Variables

    • Math: Math SAT score
    • Verbal: Verbal SAT score
    • Credits: Number of credits the student is registered for
    • Year: Year in college (1=Freshman, 2=Sophomore, 3=Junior, 4=Senior)
    • Exercise: Time (in minutes) spent exercising in a typical day
    • Sleep: Time (in hours) spent sleeping in a typical day
    • Veg: Are you a vegetarian (yes, no, some)
    • Cell: Do you own a smart phone (yes, no)

    Data

    Open the cell-phones datafile in the Stats at Cuyamaca College group on StatCrunch ( – opens in a new tab).

    Prompt

    Here is the research question for this lab.

    Based on a recent study, roughly 80% of college students in the U.S. own a smartphone. Is the proportion of smartphone owners lower at this university?

    Work through the questions below to identify the information you will need to answer this question.

    List of StatCrunch Directions

    Each link will open in a new window. To return to this discussion, either close the new tab or select the tab for this discussion.

    • (You only need to do this once.)
    • (no screenshots; please use these directions)
    • (no attachments; please use these directions)

    Here is a PDF document with all .

    Question 12 / 2 pts

    What type of study is this?

    Correct. This is an observational study. The researchers gathered data through a survey.

    IncorrectQuestion 20 / 2 pts

    What is the goal of statistical inference for this study?

    Incorrect. The data involves a categorical variable, not a quantitative variable. Therefore, we are not concerned with a population mean in this study.

    PartialQuestion 30.75 / 2 pts

    Identify each variable as either relevant or not relevant to the research question; further classify the relevant variable(s) as either quantitative or categorical.

    Relevant; Categorical Verbal

    Relevant; Categorical

    Credits

    Not relevant to the question

    Year

    Not relevant to the question

    Exercise

    Relevant; Categorical

    Sleep

    Relevant; Categorical

    Veg

    Relevant; Quantitative

    Cell

    Relevant; Categorical

    IncorrectQuestion 40 / 2 pts

    Which of the following is the appropriate graph to summarize the data relevant to this question?

    Incorrect. A boxplot is a visual display of a quantitative variable. We use side-by-side boxplots to compare the distribution of a quantitative variable across multiple groups from a categorical variable. In other words, side-by-side boxplots are a meaningful display when we have a categorical variable and a quantitative variable such as gender (categorical) and wrist-girth (quantitative).

    Cell is a single categorical variable.

    IncorrectQuestion 50 / 2 pts

    Which of the following is the appropriate numerical summary of the data relevant to this question?

    Incorrect. We use descriptive statistics such as mean, median, standard deviation, IQR, etc. to describe the distribution of a single quantitative variable across multiple groups of a categorical variable.

    Cell is a single categorical variable.

  • Statistics Question

    Please follow the instructions in the file to complete the work.

  • Hi pleas I need help for my homework

    Progress Check

    Use this activity to assess whether you and your peers can:

    • Interpret the P-value in context.

    Directions

    Use the drop-down menu to learn about the three steps needed to complete this assignment.

    Three steps to complete the assignment

    Prompt

    The Pew Research Center reported in 2018 that 68% of U.S. adults rated “reducing health care costs” as a national priority. This year a survey is conducted with a national sample of 1,505 U.S. adults selected by a combination of landline and cell phone random digit dials. This year’s survey finds that 70% of the sample says that “reducing health care costs” is a national priority.

    We test the following hypotheses:

    : The proportion of U.S. adults this year who rate “reducing health care costs” as a national priority is still 0.68.

    : The proportion of U.S. adults this year who rate “reducing health care costs” as a national priority is greater than 0.68.

    The P-value is 0.045. At a 5% significance level, we would reject the null hypothesis and conclude that the proportion of U.S. adults this year who rate “reducing health care costs” as a national priority is greater than 0.68.

    Explain the P-value in the context of this issue.

    Module 18 Discussion Board

    Use the Module 18 (opens in a new tab) to ask questions or provide feedback about the problems in any Module 18 activity – including this peer-reviewed assignment.

    Review Feedback

    • Instructor feedback is only available after an assignment is graded.
    • Use these (opens in a new tab) to learn how to review feedback.

    Click the “Next” or > button to continue.

    Content by Cuyamaca College math faculty and licensed under the .

    Rubric

    Formative Assessments

    Formative Assessments
    Criteria Ratings Pts

    This criterion is linked to a Learning OutcomeAnswering the Prompt

    10 ptsFull CreditThe first submission demonstrates a good-faith effort to address each part of the Prompt. Either in the first draft or the optional final draft, all parts of the “Prompt” are addressed and the responses demonstrate attainment of the learning objectives in the “Progress Check” section of the assignment. The answers are correct. The writing/work is clear. The explanation/work is reasonable, well-organized, and easy to follow.8.5 ptsMostly CorrectThe first submission demonstrates a good-faith effort to address most of the Prompt. In the optional final draft all parts of the “Prompt” are addressed, and the responses demonstrate attainment of the learning objectives in the “Progress Check” section of the assignment. The answers are mostly correct. The writing/work is clear. The explanation/work is reasonable, well-organized, and easy to follow.

    6 ptsOne or more incorrectThe first submission demonstrates a good-faith effort to respond to a smaller portion of the Prompt. In the first draft or the optional final draft, one or more parts of the “Prompt” are not addressed or are incorrect. Or, answers do not demonstrate attainment of the learning objectives in the “Progress Check” section of the assignment. Or, answers are correct, but the writing/work is unclear, incorrect, or difficult to follow.0 ptsNo MarksThe first submission does not demonstrate a good-faith effort to address the Prompt.

    10 pts

    Total Points: 10