ISYE 7406 Week 2 Quiz |Questions and Answers Latest Updated 2026 (Graded A+)-Georgia Institute of Technology

ISYE 7406 Week 2 Quiz |Questions and Answers Latest Updated
(Graded A+)-Georgia Institute of Technology
Due No due date Points 16 Questions 9 Time Limit None
Allowed Attempts Unlimited


Instructions
This is for the week #2 knowledge checks. You can practice as many times as you want, and it does not
count toward your grade.


Take the Quiz Again



Attempt History
Attempt Time Score
KEPT Attempt 3 4 minutes 16 out of 16

LATEST Attempt 3 4 minutes 16 out of 16

Attempt 2 5 minutes 15 out of 16

Attempt 1 48 minutes 8 out of 16



Submitted Sep 11 at 8:38pm




A B A+B
First Time 2 1 4
Second Time 2 2 5

, [The complete solution to question #1-#6 is available at the following pdf file in
the general comments of Question #1, which is available after you submit your
quiz solution]




Question 1 pts


Point Estimation: To best estimate the weights of balls A and B, one simply
approach is to use the method of least squares. This suggests to find and
that minimizes the Residuals of Sum Squares (RSS)



Find the estimated weights of balls A and B (up to four decimals in the format of
"x.xxxx").

= 2.3333 , and = 1.8333



Answer 1:

Correct! 2.3333

Answer 2:

Correct! 1.8333




The complete solution to question #1-#7 is available at the following pdf
file:
ballweightquiz2a-1.pdf
(https://gatech.instructure.com/courses/268570/files/33513279?wrap=1)
(https://gatech.instructure.com/courses/268570/files/33513279/download?
download_frd=1)




Question 2 pts


What is the estimation of the variance ?


= ( (up to four digits in the format of "x.xxxxx")