Regression Analysis of Test Scores and Stress
Not what you're looking for?
See attached.
7. It is recommended that you use the computer EXCEL sheet attached to help you answer the following questions: Write the answers in the provided space. An answer saying "see attached page" is not an option. There are almost no calculations. Most of the answers are on the EXCEL spreadsheet.
X Y
Stress Test
Score Score
6.5 81
4.0 96
2.5 93
7.2 70
8.1 63
3.4 84
5.5 73
sum 37.2 560
Given the above data for a regression analysis answer the following questions.
A. What is the independent and what is the dependent variable?
B. Develop the simple linear regression equation.
C. Find (Calculate) the Correlation Coefficient.
D. What percent of the total variation is explained by the regression equation?
E. What is the value of Y6 ? i.e. what is the expected test score with a stress level of 6.0?
Purchase this Solution
Solution Summary
Step by step method for regression analysis is discussed here. Regression coefficients, coefficient of determination, scatter diagram and significance of regression model are explained in the solution. This solution is presented in an attached Excel file, Word file and PDF copy.
Purchase this Solution
Free BrainMass Quizzes
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.