Answer all the questions (a) Run a regression of Quiz results on EQR. Formulate a hypothesis test to determine if EQR is a significant factor in determining quiz results. (b) Interpret the above regression (c) Run a regression of Quiz results on EQR, study hours, age and sex. Is this a better or worse model. Explain (d) Are all variables significant determinants? Explain (e) Interpret the regression from part c (f) Run a regression of Quiz results on all the listed variables. Are they all statistically significant? Determine the best model to help predict quiz results. Quiz Results EQR Study Hrs Age Sex BBT MB MC AuHS LM 15 10 3 19 0 0 1 1 0 1 14 15 4 24 0 0 1 0 0 1 9 15 1 20 0 10 1 0 0 1 6 10 3 21 0 0 1 1 0 1 14 15 4 21 0 9 1 0 0 1 12 10 6 21 0 2 0 1 0 1 12 13 2 21 1 8 1 0 0 0 15 15 0 20 0 8 1 0 0 1 12 15 3 20 0 10 1 0 0 1 13 15 0.2 19 0 8 1 0 0 1 15 15 2 20 0 6 1 0 1 1 12 14 5 20 0 5 1 1 1 1 14 15 7 22 0 8 0 0 0 0 7 7 10 21 1 7 0 0 1 0 11 15 5 24 0 0 1 0 0 1 10 10 3 22 1 0 1 0 0 1 13 11 3 23 1 1 1 1 1 1 13 15 2 22 1 8 0 0 0 0 13 12 4 20 1 7 1 0 1 0 13 10 3 20 1 0 1 0 0 1 8 13 5 20 1 8 0 0 0 0 12 13 5 22 0 5 0 0 0 1 13 15 8 22 0 5 0 1 0 1 10 13 4 23 1 7 1 0 0 1 13 13 0.5 20 1 0 0 0 0 0 12 13 0.5 20 1 0 1 0 0 0 15 15 2 21 0 10 1 0 0 1 10 13 6 22 0 6 1 1 0 1 11 8 5 20 0 10 0 0 1 0 12 10 4 19 1 0 1 0 0 1 8 5 2 20 1 0 1 0 1 0 11 13 6 20 1 7.5 1 1 1 1 10 3 12 21 0 4 1 0 1 0 8 11 2 19 0 0 1 0 0 1 15 15 3 23 1 2 1 0 0 1 11 14 1 23 0 10 1 1 1 1 13 14 4 21 1 8 1 0 1 1 9 15 3 22 0 5 1 0 0 0 13 14 4 21 0 9 1 0 0 1 13 15 4 20 0 5 1 0 0 1 11 13 5 20 1 8 0 0 0 0 7 10 3 24 1 5 1 0 1 1 14 15 3 20 0 6 1 0 0 1 13 15 3 20 0 8 0 0 0 0 8 12 0.5 22 1 2 1 1 0 1 8 10 4 19 1 7 0 0 1 1 15 15 3 20 0 7 1 0 0 1 14 14 3 19 0 8 1 0 0 1 7 10 3 21 1 0 0 0 1 0 11 13 2 21 0 7 1 1 0 1 14 15 6 22 0 6 1 0 0 1 9 12 3 21 1 0 1 0 0 1 14 15 2 22 0 5 1 0 0 1 9 8 4 21 0 7 1 0 1 1 15 15 7 20 0 6 1 0 0 1 13 14 3 23 1 4 0 1 0 0 14 15 5 21 0 5 1 0 0 1 12 13 5 19 1 6 1 0 0 0 14 12 2 22 1 10 1 0 0 1 14 13 2 22 0 10 1 0 0 0 11 12 3 22 0 8 1 0 1 1 4 1 9 30 0 10 1 0 1 1 14 15 3 21 1 8 1 0 0 1 15 15 3 20 0 0 0 0 0 0 13 15 3 19 1 7 1 0 0 1 14 15 2 21 1 6 1 0 0 1 8 5 3 20 0 0 1 0 1 1 7 10 9 21 1 0 1 1 0 1 12 14 4 20 0 0 1 0 0 0 6 8 4 21 0 1 1 1 0 0 9 10 5 20 0 2 0 0 1 0 10 13 2 20 1 6 1 1 1 0 10 12 1 25 1 5 1 0 1 1 13 15 2 21 1 3 1 0 0 1 9 8 1 29 0 0 0 1 0 0 12 13 2 19 0 0 1 0 0 1 12 15 3 20 0 0 1 0 0 1 14 12 7 19 0 3 1 0 1 1 8 7 1 19 1 0 0 1 0 0 14 12 1 23 1 6 1 0 1 1 11 9 3 20 1 5 0 1 1 1 13 15 2 21 1 0 1 0 0 1 14 11 2 19 1 9 0 0 0 0 11 14 4 22 1 10 0 0 0 1 10 8 5 20 1 5 0 0 1 1 11 13 1 22 1 2 0 0 0 0 14 15 0.5 20 0 8 1 0 0 0 12 14 15 23 0 0 1 1 0 1 10 12 4 19 1 0 0 1 1 1 14 12 0 20 1 3 1 0 1 1 13 10 2 19 1 0 1 0 1 0 15 12 2 20 1 3 1 0 1 1 8 10 3 19 1 1 1 0 1 1 14 12 5 21 0 0 1 0 0 1 6 10 2 21 1 8 1 0 0 1 8 8 2 21 1 1 1 0 1 1 12 10 2 20 0 7 1 0 1 1 9 6 3 20 0 1 1 1 1 1 7 8 4 19 1 9 1 1 1 0 13 11 6 19 1 6 1 0 0 1 13 10 2 25 1 0 1 0 0 1 14 14 2 25 1 5 1 0 0 0
Answer all the questions (a) Run a regression of Quiz results on EQR. Formulate a hypothesis test to determine if EQR is a significant factor in determining quiz results. (b) Interpret the above regression (c) Run a regression of Quiz results on EQR, study hours, age and sex. Is this a better or worse model. Explain (d) Are all variables significant determinants? Explain (e) Interpret the regression from part c (f) Run a regression of Quiz results on all the listed variables. Are they all statistically significant? Determine the best model to help predict quiz results. Quiz Results EQR Study Hrs Age Sex BBT MB MC AuHS LM 15 10 3 19 0 0 1 1 0 1 14 15 4 24 0 0 1 0 0 1 9 15 1 20 0 10 1 0 0 1 6 10 3 21 0 0 1 1 0 1 14 15 4 21 0 9 1 0 0 1 12 10 6 21 0 2 0 1 0 1 12 13 2 21 1 8 1 0 0 0 15 15 0 20 0 8 1 0 0 1 12 15 3 20 0 10 1 0 0 1 13 15 0.2 19 0 8 1 0 0 1 15 15 2 20 0 6 1 0 1 1 12 14 5 20 0 5 1 1 1 1 14 15 7 22 0 8 0 0 0 0 7 7 10 21 1 7 0 0 1 0 11 15 5 24 0 0 1 0 0 1 10 10 3 22 1 0 1 0 0 1 13 11 3 23 1 1 1 1 1 1 13 15 2 22 1 8 0 0 0 0 13 12 4 20 1 7 1 0 1 0 13 10 3 20 1 0 1 0 0 1 8 13 5 20 1 8 0 0 0 0 12 13 5 22 0 5 0 0 0 1 13 15 8 22 0 5 0 1 0 1 10 13 4 23 1 7 1 0 0 1 13 13 0.5 20 1 0 0 0 0 0 12 13 0.5 20 1 0 1 0 0 0 15 15 2 21 0 10 1 0 0 1 10 13 6 22 0 6 1 1 0 1 11 8 5 20 0 10 0 0 1 0 12 10 4 19 1 0 1 0 0 1 8 5 2 20 1 0 1 0 1 0 11 13 6 20 1 7.5 1 1 1 1 10 3 12 21 0 4 1 0 1 0 8 11 2 19 0 0 1 0 0 1 15 15 3 23 1 2 1 0 0 1 11 14 1 23 0 10 1 1 1 1 13 14 4 21 1 8 1 0 1 1 9 15 3 22 0 5 1 0 0 0 13 14 4 21 0 9 1 0 0 1 13 15 4 20 0 5 1 0 0 1 11 13 5 20 1 8 0 0 0 0 7 10 3 24 1 5 1 0 1 1 14 15 3 20 0 6 1 0 0 1 13 15 3 20 0 8 0 0 0 0 8 12 0.5 22 1 2 1 1 0 1 8 10 4 19 1 7 0 0 1 1 15 15 3 20 0 7 1 0 0 1 14 14 3 19 0 8 1 0 0 1 7 10 3 21 1 0 0 0 1 0 11 13 2 21 0 7 1 1 0 1 14 15 6 22 0 6 1 0 0 1 9 12 3 21 1 0 1 0 0 1 14 15 2 22 0 5 1 0 0 1 9 8 4 21 0 7 1 0 1 1 15 15 7 20 0 6 1 0 0 1 13 14 3 23 1 4 0 1 0 0 14 15 5 21 0 5 1 0 0 1 12 13 5 19 1 6 1 0 0 0 14 12 2 22 1 10 1 0 0 1 14 13 2 22 0 10 1 0 0 0 11 12 3 22 0 8 1 0 1 1 4 1 9 30 0 10 1 0 1 1 14 15 3 21 1 8 1 0 0 1 15 15 3 20 0 0 0 0 0 0 13 15 3 19 1 7 1 0 0 1 14 15 2 21 1 6 1 0 0 1 8 5 3 20 0 0 1 0 1 1 7 10 9 21 1 0 1 1 0 1 12 14 4 20 0 0 1 0 0 0 6 8 4 21 0 1 1 1 0 0 9 10 5 20 0 2 0 0 1 0 10 13 2 20 1 6 1 1 1 0 10 12 1 25 1 5 1 0 1 1 13 15 2 21 1 3 1 0 0 1 9 8 1 29 0 0 0 1 0 0 12 13 2 19 0 0 1 0 0 1 12 15 3 20 0 0 1 0 0 1 14 12 7 19 0 3 1 0 1 1 8 7 1 19 1 0 0 1 0 0 14 12 1 23 1 6 1 0 1 1 11 9 3 20 1 5 0 1 1 1 13 15 2 21 1 0 1 0 0 1 14 11 2 19 1 9 0 0 0 0 11 14 4 22 1 10 0 0 0 1 10 8 5 20 1 5 0 0 1 1 11 13 1 22 1 2 0 0 0 0 14 15 0.5 20 0 8 1 0 0 0 12 14 15 23 0 0 1 1 0 1 10 12 4 19 1 0 0 1 1 1 14 12 0 20 1 3 1 0 1 1 13 10 2 19 1 0 1 0 1 0 15 12 2 20 1 3 1 0 1 1 8 10 3 19 1 1 1 0 1 1 14 12 5 21 0 0 1 0 0 1 6 10 2 21 1 8 1 0 0 1 8 8 2 21 1 1 1 0 1 1 12 10 2 20 0 7 1 0 1 1 9 6 3 20 0 1 1 1 1 1 7 8 4 19 1 9 1 1 1 0 13 11 6 19 1 6 1 0 0 1 13 10 2 25 1 0 1 0 0 1 14 14 2 25 1 5 1 0 0 0
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Concept explainers
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
Question
Answer all the questions
(a) Run a regression of Quiz results on EQR. Formulate a hypothesis test to determine if EQR is a significant factor in determining quiz results.
(b) Interpret the above regression
(c) Run a regression of Quiz results on EQR, study hours, age and sex. Is this a better or worse model. Explain
(d) Are all variables significant determinants? Explain
(e) Interpret the regression from part c
(f) Run a regression of Quiz results on all the listed variables. Are they all statistically significant?
Determine the best model to help predict quiz results.
| Quiz Results | EQR | Study Hrs | Age | Sex | BBT | MB | MC | AuHS | LM |
| 15 | 10 | 3 | 19 | 0 | 0 | 1 | 1 | 0 | 1 |
| 14 | 15 | 4 | 24 | 0 | 0 | 1 | 0 | 0 | 1 |
| 9 | 15 | 1 | 20 | 0 | 10 | 1 | 0 | 0 | 1 |
| 6 | 10 | 3 | 21 | 0 | 0 | 1 | 1 | 0 | 1 |
| 14 | 15 | 4 | 21 | 0 | 9 | 1 | 0 | 0 | 1 |
| 12 | 10 | 6 | 21 | 0 | 2 | 0 | 1 | 0 | 1 |
| 12 | 13 | 2 | 21 | 1 | 8 | 1 | 0 | 0 | 0 |
| 15 | 15 | 0 | 20 | 0 | 8 | 1 | 0 | 0 | 1 |
| 12 | 15 | 3 | 20 | 0 | 10 | 1 | 0 | 0 | 1 |
| 13 | 15 | 0.2 | 19 | 0 | 8 | 1 | 0 | 0 | 1 |
| 15 | 15 | 2 | 20 | 0 | 6 | 1 | 0 | 1 | 1 |
| 12 | 14 | 5 | 20 | 0 | 5 | 1 | 1 | 1 | 1 |
| 14 | 15 | 7 | 22 | 0 | 8 | 0 | 0 | 0 | 0 |
| 7 | 7 | 10 | 21 | 1 | 7 | 0 | 0 | 1 | 0 |
| 11 | 15 | 5 | 24 | 0 | 0 | 1 | 0 | 0 | 1 |
| 10 | 10 | 3 | 22 | 1 | 0 | 1 | 0 | 0 | 1 |
| 13 | 11 | 3 | 23 | 1 | 1 | 1 | 1 | 1 | 1 |
| 13 | 15 | 2 | 22 | 1 | 8 | 0 | 0 | 0 | 0 |
| 13 | 12 | 4 | 20 | 1 | 7 | 1 | 0 | 1 | 0 |
| 13 | 10 | 3 | 20 | 1 | 0 | 1 | 0 | 0 | 1 |
| 8 | 13 | 5 | 20 | 1 | 8 | 0 | 0 | 0 | 0 |
| 12 | 13 | 5 | 22 | 0 | 5 | 0 | 0 | 0 | 1 |
| 13 | 15 | 8 | 22 | 0 | 5 | 0 | 1 | 0 | 1 |
| 10 | 13 | 4 | 23 | 1 | 7 | 1 | 0 | 0 | 1 |
| 13 | 13 | 0.5 | 20 | 1 | 0 | 0 | 0 | 0 | 0 |
| 12 | 13 | 0.5 | 20 | 1 | 0 | 1 | 0 | 0 | 0 |
| 15 | 15 | 2 | 21 | 0 | 10 | 1 | 0 | 0 | 1 |
| 10 | 13 | 6 | 22 | 0 | 6 | 1 | 1 | 0 | 1 |
| 11 | 8 | 5 | 20 | 0 | 10 | 0 | 0 | 1 | 0 |
| 12 | 10 | 4 | 19 | 1 | 0 | 1 | 0 | 0 | 1 |
| 8 | 5 | 2 | 20 | 1 | 0 | 1 | 0 | 1 | 0 |
| 11 | 13 | 6 | 20 | 1 | 7.5 | 1 | 1 | 1 | 1 |
| 10 | 3 | 12 | 21 | 0 | 4 | 1 | 0 | 1 | 0 |
| 8 | 11 | 2 | 19 | 0 | 0 | 1 | 0 | 0 | 1 |
| 15 | 15 | 3 | 23 | 1 | 2 | 1 | 0 | 0 | 1 |
| 11 | 14 | 1 | 23 | 0 | 10 | 1 | 1 | 1 | 1 |
| 13 | 14 | 4 | 21 | 1 | 8 | 1 | 0 | 1 | 1 |
| 9 | 15 | 3 | 22 | 0 | 5 | 1 | 0 | 0 | 0 |
| 13 | 14 | 4 | 21 | 0 | 9 | 1 | 0 | 0 | 1 |
| 13 | 15 | 4 | 20 | 0 | 5 | 1 | 0 | 0 | 1 |
| 11 | 13 | 5 | 20 | 1 | 8 | 0 | 0 | 0 | 0 |
| 7 | 10 | 3 | 24 | 1 | 5 | 1 | 0 | 1 | 1 |
| 14 | 15 | 3 | 20 | 0 | 6 | 1 | 0 | 0 | 1 |
| 13 | 15 | 3 | 20 | 0 | 8 | 0 | 0 | 0 | 0 |
| 8 | 12 | 0.5 | 22 | 1 | 2 | 1 | 1 | 0 | 1 |
| 8 | 10 | 4 | 19 | 1 | 7 | 0 | 0 | 1 | 1 |
| 15 | 15 | 3 | 20 | 0 | 7 | 1 | 0 | 0 | 1 |
| 14 | 14 | 3 | 19 | 0 | 8 | 1 | 0 | 0 | 1 |
| 7 | 10 | 3 | 21 | 1 | 0 | 0 | 0 | 1 | 0 |
| 11 | 13 | 2 | 21 | 0 | 7 | 1 | 1 | 0 | 1 |
| 14 | 15 | 6 | 22 | 0 | 6 | 1 | 0 | 0 | 1 |
| 9 | 12 | 3 | 21 | 1 | 0 | 1 | 0 | 0 | 1 |
| 14 | 15 | 2 | 22 | 0 | 5 | 1 | 0 | 0 | 1 |
| 9 | 8 | 4 | 21 | 0 | 7 | 1 | 0 | 1 | 1 |
| 15 | 15 | 7 | 20 | 0 | 6 | 1 | 0 | 0 | 1 |
| 13 | 14 | 3 | 23 | 1 | 4 | 0 | 1 | 0 | 0 |
| 14 | 15 | 5 | 21 | 0 | 5 | 1 | 0 | 0 | 1 |
| 12 | 13 | 5 | 19 | 1 | 6 | 1 | 0 | 0 | 0 |
| 14 | 12 | 2 | 22 | 1 | 10 | 1 | 0 | 0 | 1 |
| 14 | 13 | 2 | 22 | 0 | 10 | 1 | 0 | 0 | 0 |
| 11 | 12 | 3 | 22 | 0 | 8 | 1 | 0 | 1 | 1 |
| 4 | 1 | 9 | 30 | 0 | 10 | 1 | 0 | 1 | 1 |
| 14 | 15 | 3 | 21 | 1 | 8 | 1 | 0 | 0 | 1 |
| 15 | 15 | 3 | 20 | 0 | 0 | 0 | 0 | 0 | 0 |
| 13 | 15 | 3 | 19 | 1 | 7 | 1 | 0 | 0 | 1 |
| 14 | 15 | 2 | 21 | 1 | 6 | 1 | 0 | 0 | 1 |
| 8 | 5 | 3 | 20 | 0 | 0 | 1 | 0 | 1 | 1 |
| 7 | 10 | 9 | 21 | 1 | 0 | 1 | 1 | 0 | 1 |
| 12 | 14 | 4 | 20 | 0 | 0 | 1 | 0 | 0 | 0 |
| 6 | 8 | 4 | 21 | 0 | 1 | 1 | 1 | 0 | 0 |
| 9 | 10 | 5 | 20 | 0 | 2 | 0 | 0 | 1 | 0 |
| 10 | 13 | 2 | 20 | 1 | 6 | 1 | 1 | 1 | 0 |
| 10 | 12 | 1 | 25 | 1 | 5 | 1 | 0 | 1 | 1 |
| 13 | 15 | 2 | 21 | 1 | 3 | 1 | 0 | 0 | 1 |
| 9 | 8 | 1 | 29 | 0 | 0 | 0 | 1 | 0 | 0 |
| 12 | 13 | 2 | 19 | 0 | 0 | 1 | 0 | 0 | 1 |
| 12 | 15 | 3 | 20 | 0 | 0 | 1 | 0 | 0 | 1 |
| 14 | 12 | 7 | 19 | 0 | 3 | 1 | 0 | 1 | 1 |
| 8 | 7 | 1 | 19 | 1 | 0 | 0 | 1 | 0 | 0 |
| 14 | 12 | 1 | 23 | 1 | 6 | 1 | 0 | 1 | 1 |
| 11 | 9 | 3 | 20 | 1 | 5 | 0 | 1 | 1 | 1 |
| 13 | 15 | 2 | 21 | 1 | 0 | 1 | 0 | 0 | 1 |
| 14 | 11 | 2 | 19 | 1 | 9 | 0 | 0 | 0 | 0 |
| 11 | 14 | 4 | 22 | 1 | 10 | 0 | 0 | 0 | 1 |
| 10 | 8 | 5 | 20 | 1 | 5 | 0 | 0 | 1 | 1 |
| 11 | 13 | 1 | 22 | 1 | 2 | 0 | 0 | 0 | 0 |
| 14 | 15 | 0.5 | 20 | 0 | 8 | 1 | 0 | 0 | 0 |
| 12 | 14 | 15 | 23 | 0 | 0 | 1 | 1 | 0 | 1 |
| 10 | 12 | 4 | 19 | 1 | 0 | 0 | 1 | 1 | 1 |
| 14 | 12 | 0 | 20 | 1 | 3 | 1 | 0 | 1 | 1 |
| 13 | 10 | 2 | 19 | 1 | 0 | 1 | 0 | 1 | 0 |
| 15 | 12 | 2 | 20 | 1 | 3 | 1 | 0 | 1 | 1 |
| 8 | 10 | 3 | 19 | 1 | 1 | 1 | 0 | 1 | 1 |
| 14 | 12 | 5 | 21 | 0 | 0 | 1 | 0 | 0 | 1 |
| 6 | 10 | 2 | 21 | 1 | 8 | 1 | 0 | 0 | 1 |
| 8 | 8 | 2 | 21 | 1 | 1 | 1 | 0 | 1 | 1 |
| 12 | 10 | 2 | 20 | 0 | 7 | 1 | 0 | 1 | 1 |
| 9 | 6 | 3 | 20 | 0 | 1 | 1 | 1 | 1 | 1 |
| 7 | 8 | 4 | 19 | 1 | 9 | 1 | 1 | 1 | 0 |
| 13 | 11 | 6 | 19 | 1 | 6 | 1 | 0 | 0 | 1 |
| 13 | 10 | 2 | 25 | 1 | 0 | 1 | 0 | 0 | 1 |
| 14 | 14 | 2 | 25 | 1 | 5 | 1 | 0 | 0 | 0 |
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman