The following data gives the number of hours 7 students spent studying and their corresponding grades on their midterm exams. Hours of Studying (x) 0 1 2.5 3 4 4.5 5.5 Midterm Exam Grades (y) 60 69 72 75 78 81 90 Using this data, find the following: PART A: Calculate the correlation coefficient, r. Round your answer to THREE decimal places. PART B: Using a 0.05 significance level, is there a statistically significant correlation between hours of studying and the midterm exam grade? YES OR NO? Explain your process for determining your answer. Be specific! PART C: Find an equation of the least-squares regression line. Round your numbers in the equation to three decimal places, if necessary. Type your equation using the EQUATION EDITOR.
The following data gives the number of hours 7 students spent studying and their corresponding grades on their midterm exams. Hours of Studying (x) 0 1 2.5 3 4 4.5 5.5 Midterm Exam Grades (y) 60 69 72 75 78 81 90 Using this data, find the following: PART A: Calculate the correlation coefficient, r. Round your answer to THREE decimal places. PART B: Using a 0.05 significance level, is there a statistically significant correlation between hours of studying and the midterm exam grade? YES OR NO? Explain your process for determining your answer. Be specific! PART C: Find an equation of the least-squares regression line. Round your numbers in the equation to three decimal places, if necessary. Type your equation using the EQUATION EDITOR.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The following data gives the number of hours 7 students spent studying and their corresponding grades on their midterm exams.
| Hours of Studying (x) |
0 | 1 | 2.5 | 3 | 4 | 4.5 | 5.5 |
| Midterm Exam Grades (y) |
60 | 69 | 72 | 75 | 78 | 81 | 90 |
Using this data, find the following:
PART A: Calculate the
PART B: Using a 0.05 significance level, is there a statistically significant correlation between hours of studying and the midterm exam grade? YES OR NO? Explain your process for determining your answer. Be specific!
PART C: Find an equation of the least-squares regression line. Round your numbers in the equation to three decimal places, if necessary. Type your equation using the EQUATION EDITOR.
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