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MATH 160 Cuyamaca College Regression Line and Absolute Prediction Error Questions
InstructionsProgress CheckUse this activity to assess whether you can: Use StatCrunch to graph a scatterplot with its leas ...
MATH 160 Cuyamaca College Regression Line and Absolute Prediction Error Questions
InstructionsProgress CheckUse this activity to assess whether you can: Use StatCrunch to graph a scatterplot with its least squares regression line and to simultaneously produce the equation of the regression line along with its correlation coefficient, r.Identify the x with the largest absolute prediction error.Explain why a given data point is an outlier.In this activity you will use StatCrunch and embed your results in an essay question. The essay questions are not automatically graded; your instructor will enter the points for these questions later. WARNING: you will need to enter your response to each essay question with every attempt. Your instructor will only grade the essay for your attempt with the highest total score for the automatically graded questions.Discussion BoardUse the Module 27 discussion board (opens in a new tab) to ask questions or provide feedback about the problems in any Module 27 activity - including this lab. Attempt HistoryAttemptTimeScoreLATESTAttempt 125 minutes4 out of 10 ** Some questions not yet graded Correct answers are hidden.Score for this attempt: 4 out of 10 *Submitted May 2 at 10:36amThis attempt took 25 minutes.Learn by DoingSome 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 text-box.ContextThe modern Olympic Games have changed dramatically since their inception in 1896. Are athletes getting better? We will use regression to investigate the change in winning times for one event—the men's 1,500 meter race.VariablesYear: the year of the Olympic Games, from 1896 to 2000.Time: the winning time for the 1,500 meter race, in seconds.Since the winning time depends on the year, the Year since 1896 is the explanatory variable, and the Winning time is the response variable.DataDownload the olympics (Links to an external site.) datafile for the men's 1,500 meter race. Then upload the datafile in StatCrunch. If you need a reminder about how to do this, review the list of StatCrunch directions below.PromptIn the first two questions below, you will use StatCrunch to produce and examine the scatterplot for the olympics datafile. You will also use StatCrunch to find the regression equation and correlation coefficient. List of StatCrunch DirectionsAs you work through numbers 1) and 2) below, refer back to these StatCrunch directions when you need a quick reminder.Purchase StatCrunch (You only need to do this once.)Open StatCrunchDownload Excel Data FileUpload Excel Data File to StatCrunchDownload StatCrunch Output Window (do not take screenshots; please use these directions)Upload Files to Your Stat-Class Folder in CanvasEmbed Pictures in a Discussion Post (do not post attachments; please use these directions)Copy and Paste StatCrunch Text OutputProduce Scatterplot, LSR Line, Regression Equation, & R (All at the same time!)UnansweredQuestion 1Not yet graded / 3 ptsThese directions assume that you have uploaded the olympics datafile in StatCrunch, and the StatCrunch worksheet with the data is open. If not, please see the Data section above.Using the year since 1896 as the explanatory variable and the winning time as the response variable: graph the scatterplot with the regression line and produce the regression equation with the correlation coefficient - all at the same time (directions)Toggle to the output page with the scatterplot and regression line. Notice that the data has a strong linear association, so it makes sense to use linear regression. (Always check the form of the scatterplot before using linear regression.)Download the StatCrunch output page with your scatterplot and regression line graphed together. (directions)Save the .png file (the graph of your scatterplot and regression line) to your Stats-Class folder. (directions)Embed the .png file for your scatterplot and regression line in the text-box below. (directions)UnansweredQuestion 2Not yet graded / 3 ptsThese directions assume you have produced the Simple linear regression results in a multipage StatCrunch output window. If not please see the previous question.Toggle to the StatCrunch output page with the regression equation, correlation coefficient, and other statistics.Under the heading Simple linear regression results, copy and paste the first five lines (dependent variable, independent variable, linear equation, sample size, and R) into the text-box below. (directions)Simple linear regression results:Dependent Variable: TimeIndependent Variable: Year Time = 994.19341 - 0.39304496 YearSample size: 24R (correlation coefficient) = -0.89075356Question 32 / 2 ptsFor which of the years 1900, 1940, or 2000 is the absolute prediction error the largest? 1900 1940undefinedundefined2000undefinedCorrect. Vertical distance from the regression line is the prediction error. The data point for 2000 is father from the regression line than the other options, so the prediction error is largest.Question 42 / 2 ptsFor the year 1896, the winning time for the men's 1500-meter race is an outlier. In what ways is this data point an outlier? Check all that applyundefinedan outlier with respect to Y=Time Correct. The winning time in 1896 is much larger than the other winning times.undefinedan outlier with respect to X=Yearundefinedundefinedan outlier with respect to the form of the relationship between X and YCorrect. The data point (1896, 273) deviates from the pattern in the rest of the data. It does not follow the strong, negative association or the linear pattern. Score: 4 out of 10
5 pages
Edr 8201 Week 3 Assignment Rev 1
This assignment includes four variables that indicate the students’ performances on an SPSS exam. You will find the info ...
Edr 8201 Week 3 Assignment Rev 1
This assignment includes four variables that indicate the students’ performances on an SPSS exam. You will find the information in the SPSS
MTHH 043 UNHS Precalculus Analytic Geometry Algebra Domain & Symmetry Exam Practice
I need the questions in these images answered please. You can just answer them directly on the same PDF. Ignore the bubble ...
MTHH 043 UNHS Precalculus Analytic Geometry Algebra Domain & Symmetry Exam Practice
I need the questions in these images answered please. You can just answer them directly on the same PDF. Ignore the bubbled in answers as a lot of them may be wrong.
Rasmussen College The Normal Distribution and Central Limit Worksheet
Apply the normal distribution, standard normal distribution, and central limit theorem.
Scenario
Frank has only had a brie ...
Rasmussen College The Normal Distribution and Central Limit Worksheet
Apply the normal distribution, standard normal distribution, and central limit theorem.
Scenario
Frank has only had a brief introduction to statistics when he was in high school 12 years ago, and that did not cover inferential statistics. He is not confident in his ability to answer some of the problems posed in the course.
As Frank's tutor, you need to provide Frank with guidancprobabilitye and instruction on a spreadsheet he has partially filled out. Your job is to help him understand and comprehend the material. You should not simply be providing him with an answer as this will not help when it comes time to take the test. Instead, you will be providing a step-by-step breakdown of the problems including an explanation on why you did each step and using proper terminology.
What to Submit
To complete this assignment, you must first download the spreadsheet, and then complete it by including the following items on the spreadsheet:
Incorrect Answers - Correct any wrong answers. You must also explain the error performed in the problem in your own words.
Partially Finished Work - Complete any partially completed work. Make sure to provide step-by-step instructions including explanations.
Blank Questions - Show how to complete any blank questions by providing step-by-step instructions including explanations.
Your step-by-step breakdown of the problems, including explanations and calculations performed, should be present within the Excel spreadsheet provided.
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Most Popular Content
MATH 160 Cuyamaca College Regression Line and Absolute Prediction Error Questions
InstructionsProgress CheckUse this activity to assess whether you can: Use StatCrunch to graph a scatterplot with its leas ...
MATH 160 Cuyamaca College Regression Line and Absolute Prediction Error Questions
InstructionsProgress CheckUse this activity to assess whether you can: Use StatCrunch to graph a scatterplot with its least squares regression line and to simultaneously produce the equation of the regression line along with its correlation coefficient, r.Identify the x with the largest absolute prediction error.Explain why a given data point is an outlier.In this activity you will use StatCrunch and embed your results in an essay question. The essay questions are not automatically graded; your instructor will enter the points for these questions later. WARNING: you will need to enter your response to each essay question with every attempt. Your instructor will only grade the essay for your attempt with the highest total score for the automatically graded questions.Discussion BoardUse the Module 27 discussion board (opens in a new tab) to ask questions or provide feedback about the problems in any Module 27 activity - including this lab. Attempt HistoryAttemptTimeScoreLATESTAttempt 125 minutes4 out of 10 ** Some questions not yet graded Correct answers are hidden.Score for this attempt: 4 out of 10 *Submitted May 2 at 10:36amThis attempt took 25 minutes.Learn by DoingSome 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 text-box.ContextThe modern Olympic Games have changed dramatically since their inception in 1896. Are athletes getting better? We will use regression to investigate the change in winning times for one event—the men's 1,500 meter race.VariablesYear: the year of the Olympic Games, from 1896 to 2000.Time: the winning time for the 1,500 meter race, in seconds.Since the winning time depends on the year, the Year since 1896 is the explanatory variable, and the Winning time is the response variable.DataDownload the olympics (Links to an external site.) datafile for the men's 1,500 meter race. Then upload the datafile in StatCrunch. If you need a reminder about how to do this, review the list of StatCrunch directions below.PromptIn the first two questions below, you will use StatCrunch to produce and examine the scatterplot for the olympics datafile. You will also use StatCrunch to find the regression equation and correlation coefficient. List of StatCrunch DirectionsAs you work through numbers 1) and 2) below, refer back to these StatCrunch directions when you need a quick reminder.Purchase StatCrunch (You only need to do this once.)Open StatCrunchDownload Excel Data FileUpload Excel Data File to StatCrunchDownload StatCrunch Output Window (do not take screenshots; please use these directions)Upload Files to Your Stat-Class Folder in CanvasEmbed Pictures in a Discussion Post (do not post attachments; please use these directions)Copy and Paste StatCrunch Text OutputProduce Scatterplot, LSR Line, Regression Equation, & R (All at the same time!)UnansweredQuestion 1Not yet graded / 3 ptsThese directions assume that you have uploaded the olympics datafile in StatCrunch, and the StatCrunch worksheet with the data is open. If not, please see the Data section above.Using the year since 1896 as the explanatory variable and the winning time as the response variable: graph the scatterplot with the regression line and produce the regression equation with the correlation coefficient - all at the same time (directions)Toggle to the output page with the scatterplot and regression line. Notice that the data has a strong linear association, so it makes sense to use linear regression. (Always check the form of the scatterplot before using linear regression.)Download the StatCrunch output page with your scatterplot and regression line graphed together. (directions)Save the .png file (the graph of your scatterplot and regression line) to your Stats-Class folder. (directions)Embed the .png file for your scatterplot and regression line in the text-box below. (directions)UnansweredQuestion 2Not yet graded / 3 ptsThese directions assume you have produced the Simple linear regression results in a multipage StatCrunch output window. If not please see the previous question.Toggle to the StatCrunch output page with the regression equation, correlation coefficient, and other statistics.Under the heading Simple linear regression results, copy and paste the first five lines (dependent variable, independent variable, linear equation, sample size, and R) into the text-box below. (directions)Simple linear regression results:Dependent Variable: TimeIndependent Variable: Year Time = 994.19341 - 0.39304496 YearSample size: 24R (correlation coefficient) = -0.89075356Question 32 / 2 ptsFor which of the years 1900, 1940, or 2000 is the absolute prediction error the largest? 1900 1940undefinedundefined2000undefinedCorrect. Vertical distance from the regression line is the prediction error. The data point for 2000 is father from the regression line than the other options, so the prediction error is largest.Question 42 / 2 ptsFor the year 1896, the winning time for the men's 1500-meter race is an outlier. In what ways is this data point an outlier? Check all that applyundefinedan outlier with respect to Y=Time Correct. The winning time in 1896 is much larger than the other winning times.undefinedan outlier with respect to X=Yearundefinedundefinedan outlier with respect to the form of the relationship between X and YCorrect. The data point (1896, 273) deviates from the pattern in the rest of the data. It does not follow the strong, negative association or the linear pattern. Score: 4 out of 10
5 pages
Edr 8201 Week 3 Assignment Rev 1
This assignment includes four variables that indicate the students’ performances on an SPSS exam. You will find the info ...
Edr 8201 Week 3 Assignment Rev 1
This assignment includes four variables that indicate the students’ performances on an SPSS exam. You will find the information in the SPSS
MTHH 043 UNHS Precalculus Analytic Geometry Algebra Domain & Symmetry Exam Practice
I need the questions in these images answered please. You can just answer them directly on the same PDF. Ignore the bubble ...
MTHH 043 UNHS Precalculus Analytic Geometry Algebra Domain & Symmetry Exam Practice
I need the questions in these images answered please. You can just answer them directly on the same PDF. Ignore the bubbled in answers as a lot of them may be wrong.
Rasmussen College The Normal Distribution and Central Limit Worksheet
Apply the normal distribution, standard normal distribution, and central limit theorem.
Scenario
Frank has only had a brie ...
Rasmussen College The Normal Distribution and Central Limit Worksheet
Apply the normal distribution, standard normal distribution, and central limit theorem.
Scenario
Frank has only had a brief introduction to statistics when he was in high school 12 years ago, and that did not cover inferential statistics. He is not confident in his ability to answer some of the problems posed in the course.
As Frank's tutor, you need to provide Frank with guidancprobabilitye and instruction on a spreadsheet he has partially filled out. Your job is to help him understand and comprehend the material. You should not simply be providing him with an answer as this will not help when it comes time to take the test. Instead, you will be providing a step-by-step breakdown of the problems including an explanation on why you did each step and using proper terminology.
What to Submit
To complete this assignment, you must first download the spreadsheet, and then complete it by including the following items on the spreadsheet:
Incorrect Answers - Correct any wrong answers. You must also explain the error performed in the problem in your own words.
Partially Finished Work - Complete any partially completed work. Make sure to provide step-by-step instructions including explanations.
Blank Questions - Show how to complete any blank questions by providing step-by-step instructions including explanations.
Your step-by-step breakdown of the problems, including explanations and calculations performed, should be present within the Excel spreadsheet provided.
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