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Author Question: An academic advisor wants to predict the typical starting salary of a graduate at a top business ... (Read 76 times)

RODY.ELKHALIL

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An academic advisor wants to predict the typical starting salary of a graduate at a top business school using the GMAT score of the school as a predictor variable. A simple linear regression of SALARY versus GMAT using 25 data points is shown below.

0 = -92040  1 = 228  s = 3213  r2 = .66  r = .81  df = 23  t = 6.67

A 95% prediction interval for SALARY when GMAT = 600 is approximately ($37,915, $51,984). Interpret this interval.
◦ We are 95% confident that the increase in SALARY for a 600-point increase in GMAT will fall between $37,915 and $51,984.
◦ We are 95% confident that the SALARY of a top business school graduate with a GMAT of 600 will fall between $37,915 and $51,984.
◦ We are 95% confident that the mean SALARY of all top business school graduates with GMATs of 600 will fall between $37,915 and $51,984.
◦ We are 95% confident that the SALARY of a top business school graduate will fall between $37,915 and $51,984.


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Marked as best answer by RODY.ELKHALIL on Feb 14, 2020

mrphibs

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RODY.ELKHALIL

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Reply 2 on: Feb 14, 2020
Excellent


ASDFGJLO

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Reply 3 on: Yesterday
Wow, this really help

 

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