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Author Question: What relationship between x and y is suggested by the scattergram? (Read 57 times)

jeatrice

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Question 1

Consider the second-order model

= -3.24 + 1.12x1 + 2.57x2 - 3.22x1x2 + 5.78 = 4.69

If x2 is held fixed at x2 = 3, describe the relationship between and x1.
◦ The relationship between and x1 is linear with positive slope.
◦ The relationship between and x1 is quadratic with upward concavity.
◦ The relationship between and x1 is linear with negative slope.
◦ The relationship between and x1 is quadratic with downward concavity.

Question 2

What relationship between x and y is suggested by the scattergram?



◦ a linear relationship with negative slope
◦ a quadratic relationship with downward concavity
◦ a quadratic relationship with upward concavity
◦ a linear relationship with positive slope


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Marked as best answer by jeatrice on Feb 14, 2020

wergv

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jeatrice

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Reply 2 on: Feb 14, 2020
YES! Correct, THANKS for helping me on my review


bdobbins

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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