The following table includes the weekly study time and exam result for each student in a hypothetical class of 20 students. Who knows, perhaps an Analytical Foundations of Math class. Create an Excel spreadsheet that includes the given table and then create a scatter plot, which correctly displays the values from this table. The study times should be the explanatory variable on the x-axis and the exam scores are the response variable on the y-axis. Your spreadsheet should include each of the following items: - Your Name - The given table, including the column titles - A descriptive and easily readable chart title - Descriptive and easy to read titles for both the x and y-axis - A line-of-best fit with the equation of this line also included - Answers to each of the questions below 1. What is the value of the correlation coefficient, r ? 2. What type of correlation best describes the relationship between study time and exam score? a. Strong, Negative Linear association b. Weak, Negative Linear association c. Strong, Positive Linear association d. Weak, Positive Linear association 3. By interpreting the slope of the trendline (line-of-best fit), what observation can you make about the effect that 1 hour of additional weekly study time has on exam score? 4. Using the trendline equation, what will the exam score be for a student who does not study at all? 5. Using the trendline equation, what will the score be for a student who studies 8.7 hours per week?

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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The following table includes the weekly study time and exam result for each student in a hypothetical class of 20 students. Who knows, perhaps an Analytical Foundations of Math class. Create an Excel spreadsheet that includes the given table and then create a scatter plot, which correctly displays the values from this table. The study times should be the explanatory variable on the x-axis and the exam scores are the response variable on the y-axis. Your spreadsheet should include each of the following items: - Your Name - The given table, including the column titles - A descriptive and easily readable chart title - Descriptive and easy to read titles for both the x and y-axis - A line-of-best fit with the equation of this line also included - Answers to each of the questions below 1. What is the value of the correlation coefficient, r ? 2. What type of correlation best describes the relationship between study time and exam score? a. Strong, Negative Linear association b. Weak, Negative Linear association c. Strong, Positive Linear association d. Weak, Positive Linear association 3. By interpreting the slope of the trendline (line-of-best fit), what observation can you make about the effect that 1 hour of additional weekly study time has on exam score? 4. Using the trendline equation, what will the exam score be for a student who does not study at all? 5. Using the trendline equation, what will the score be for a student who studies 8.7 hours per week?