In a simple linear regression model the coefficient

This preview shows page 35 - 38 out of 119 pages.

Question 2   (4 points) In a simple linear regression model, the coefficient of determination not only indicates the strength of the  relationship between independent and dependent variable, but also shows whether the relationship is positive or  negative.  Student response: Percent Value Correct Response Student Response Answer Choices 0.0% a. True 100.0% b. False Score: 0 / 4   Question 3   (4 points) In simple regression analysis the quantity that gives the amount by which Y (dependent variable) changes for a unit  change in X (independent variable) is called the  Student response: Percent Value Correct Response Student Response Answer Choices 0.0% 100.0% 0.0% 0.0% 0.0% Score: 4 / 4   Question 4   (4 points) Given the following information about a hypothesis test of the difference between two means based on  independent random samples, which one of the following is the correct rejection region at a significance level of . 05? Student response: Percent Value Correct Response Student Response Answer Choices 0.0% 0.0% 100.0%
Image of page 35

Subscribe to view the full document.

0.0% 0.0% Score: 0 / 4   Question 5   (4 points) When using simple regression analysis, if there is a strong correlation between the independent and dependent  variable, then we can conclude that an increase in the value of the independent variable causes an increase in the  value of the dependent variable.  Student response: Percent Value Correct Response Student Response Answer Choices 0.0% 100.0% Score: 0 / 4   Question 6   (4 points) If all data points fell on a straight line, SSE would equal _____ and r would equal _____.  Student response: Percent Value Correct Response Student Response Answer Choices 0.0% a. 0,0 0.0% b. 1,0 0.0% c. 0,1 100.0% d. 0, -1 or 1 Score: 4 / 4   Question 7   (4 points) There are two types of machines called type A and type B. Both type A and type B can be used to produce a  certain product. The production manager wants to compare efficiency of the two machines. He assigns each of the  fifteen workers to both types of machines to compare the hourly production rate of the 15 workers. In other words,  each worker operates machine A and machine B for one hour each. These two samples are independent.  Student response: Percent Value Correct Response Student Response Answer Choices 0.0%
Image of page 36
100.0% Score: 4 / 4  
Image of page 37

Subscribe to view the full document.

Image of page 38

{[ snackBarMessage ]}

Get FREE access by uploading your study materials

Upload your study materials now and get free access to over 25 million documents.

Upload now for FREE access Or pay now for instant access
Christopher Reinemann
"Before using Course Hero my grade was at 78%. By the end of the semester my grade was at 90%. I could not have done it without all the class material I found."
— Christopher R., University of Rhode Island '15, Course Hero Intern

Ask a question for free

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern