. Create    a    scatter    plot    of    the    data b. Calculate    r    and    r2 c. Report    results    in    APA    style. d. What    do    results    mean? is the test significant?? Time Grade

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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As    a    student,    you    probably    have    noticed    a    curious    phenomenon.    In    every    class,    there    
are    some    students    who    zip    through    exams    and    turn    in    their    papers    while    everyone    
else    is    still    on    page    1.    Other    students    cling    to    their    exams    and    continue    working    until    
the    very    last    minute.    Have    you    ever    wondered    what    grades    these    students    get?    Are    
the    students    who    finish    first    the    best    in    the    class    or    are    they    simply    conceding    
failure?    To    answer    this    question,    we    carefully    observed    a    recent    exam    and    recorded    
the    amount    of    time    each    student    spent    working    and    the    grade    each    student    received.    
Is    there    a    relationship    between    the    two?
a. Create    a    scatter    plot    of    the    data
b. Calculate    r    and    r2
c. Report    results    in    APA    style.
d. What    do    results    mean? is the test significant??
Time Grade
44     94
60    76
40   89
57   92
52   81
45   88
M    =    49.67 M    =    86.67
SS    =    313.33 SS    =    235.33

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