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MATH-221 Week 7 Homework: Statistics for Decision-Making (Extra Version) | 100% CORRECT ANSWERS $10.99   Add to cart

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MATH-221 Week 7 Homework: Statistics for Decision-Making (Extra Version) | 100% CORRECT ANSWERS

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(CO 6) The coefficient of determination is represented by what notation? β ρ Correct! r2 r See text page 499 (CO 6) Two variables have a positive linear correlation. Does the independent variable increase or decrease as the dependent variable increases? Correct Answer Independent variable increas...

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  • July 20, 2022
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MATH-221 Week 7 Homework: Statistics for Decision-Making
(Extra Version)

Question 1
pts
(CO 6) The coefficient of determination is represented by what notation?


β



ρ

Correct!

r 2




r

See text page 499


Question 2
pts
(CO 6) Two variables have a positive linear correlation. Does the independent variable
increase or decrease as the dependent variable increases?
Correct Answer

Independent variable increases




Independent variable decreases



Independent variable would remain the same



Cannot determine from information given
See text page 473

, MATH-221 Week 7 Homework: Statistics for Decision-Making
(Extra Version)



Question 3
pts
(CO 6) Find the regression equation for the following data set
x 245 187 198 189 176 266 210 255
y 50 54 55 78 44 41 51 60
Correct!

ŷ = -0.09x + 74.17



ŷ = 74.17x – 0.09



cannot be determined



ŷ = 0.09x – 74.17

See text pages 487-488
Question 4
pts
(CO 6) A student wants to determine if a higher quality diet will improve their grade point
average. Which variable would be the response variable?


The number of classes taken

Correct!

Their GPA




The student



The higher quality diet

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