the equation for the regression line is y=1.533x+54.133 (a) Predict the value of
ID: 3021514 • Letter: T
Question
the equation for the regression line is y=1.533x+54.133
(a) Predict the value of y for
xequals=11.5
Choose the correct answer below.
A.
71.8
B.
68.7
C.
70.2
D.
not meaningful
(b) Predict the value of y for
x=10.5
Choose the correct answer below.
A.
70.2
B.
68.7
C.
77.1
D.
not meaningful
(c) Predict the value of y for
x=15.0
Choose the correct answer below.
A.
71.8
B.
70.2
C.
77.1
D.
not meaningful
(d) Predict the value of y for
x=9.5
Choose the correct answer below.
A.
77.1
B.
71.8
C.
68.7
D.
not meaningful
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Explanation / Answer
a)
As
y=1.533x+54.133
Then if x = 11.5,
y=1.533*11.5+54.133
y = 71.7625 = 71.8 [ANSWER, A]
*****************
b)
As
y=1.533x+54.133
Then if x = 10.5,
y = 1.533*10.5+54.133
y = 70.2295 = 70.2 [ANSWER, B]
****************
c)
As
y=1.533x+54.133
Then if x = 15,
y = 1.533*15+54.133
y = 77.128 = 77.1 [ANSWER, C]
****************
d)
As
y=1.533x+54.133
Then if x = 9.5,
y = 1.533*9.5+54.133
y = 68.6965 = 68.7 [ANSWER, C]
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