Maurice Tutor

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Expertise:
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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 16 Feb 2018 My Price 8.00

data in GPA2.RAW

    1. Using the data in GPA2.RAW, the following equation was estimated:

sa ˆ t = 1,028.10 + 19.30 hsize - 2.19 hsize 2 - 45.09 female

(6.29) (3.83) (0.53) (4.29)

- 169.81 black + 62.31 female · black

(12.71) (18.15)

n = 4,137, R 2 = .0858.

The variable sat is the combined SAT score, hsize is size of the student’s high school graduating class, in hundreds, female is a gender dummy variable, and black is a race dummy variable equal to one for blacks, and zero otherwise.

      1. Is there strong evidence that hsize 2 should be included in the model? From this equation, what is the optimal high school size?

      2. Holding hsize fixed, what is the estimated difference in SAT score between nonblack females and nonblack males? How statistically sig- nificant is this estimated difference?

      3. What is the estimated difference in SAT score between nonblack males and black males? Test the null hypothesis that there is no difference between their scores, against the alternative that there is a difference.

      4. What is the estimated difference in SAT score between black females and nonblack females? What would you need to do to test whether the difference is statistically significant?

Answers

Maurice Tutor
(5)
Status NEW Posted 16 Feb 2018 08:02 PM My Price 8.00

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