{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

QuizCh11 - Total 1 8 3616477.556 490818.184 7...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Math 350 – Quiz Chapter 11 – Regression Printed Name: Calculators are allowed on this quiz. ..neighbors are not ! Show work for credit. 1 The data below are given for 9 patients with aplastic anemia. Doctors are interested in predicting the number of lymphocytes ( y ) based upon the percentage of reticulocytes ( x ). % reticulocytes 3.6 2.0 0.3 0.3 0.2 3.0 0.0 1.0 2.2 Lymphocytes (per mm 2 ) 1700 3078 1820 2706 2086 2299 676 2088 2013 A 2 pts Fit a regression line relating to the data. ˆ y = ............................................................................................................................ B 2 pts Interpret the slope in the context of this problem. ............................................................................................................................ C 2 pts Test for the statistical significance of this regression line using the F test or t test, that is test the hypothesis H 0 : The slope is equal to zero vs. H a : The slope is not zero. Sig. F Mean Square df Sum of Squares Regression Residual
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Total 1 8 3616477.556 490818.184 7 3435727.289 .563 a .368 180750.267 1 180750.267 Model ANOVA b a. Predictors: (Constant), Reticulocytes b. Dependent Variable: Lymphocytes Std. Error B Beta Sig. t Standardized Coefficients Unstandardized Coefficients (Constant) Reticulocytes 1 .563 .607 .224 184.748 112.114 .001 5.437 348.474 1894.818 Model Coefficients a a. Dependent Variable: Lymphocytes Reject H Fail to Reject H Accept H ............................................................................................................................ D 2 pts What does R , the correlation coefficient, indicate in the context of this problem? ............................................................................................................................ E 2 pts What does R 2 mean in the context of this problem? Dr. Emmert Summer 2011 I of I Points Earned of 10...
View Full Document

{[ snackBarMessage ]}

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