Consider the following pairs of m -1 7 y 0 1 8 a. Construct a scatterplot of these data. p. What does the scatterplot suggest about the relation- ship between x and y? . Given that Sxx 43.4286, SSyy = 3.7143, calculate the least squares estimates of ху 39.8571, ỹ = 3.4286, and x 43 45 33 54

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2
3
3
3 0
-1
1
8.0
L11021
8.
y
a. Construct a scatterplot of these data.
b. What does the scatterplot suggest about the relation-
ship between x and y?
c. Given that SSxx
= 3.4286,
43.4286, SSy = 39.8571, ỹ
and x = 3.7143, calculate the least squares estimates of
%3D
%3D
ху
%3D
%3D
Bo and B1.
d. Plot the least squares line on your scatterplot. Does the
line appear to fit the data well? Explain.
on the plot.
e. Interpret the y-intercept and slope of the least squares
line. Over what range of x are these interpretations
meaningful?
14
65
Transcribed Image Text:2 3 3 3 0 -1 1 8.0 L11021 8. y a. Construct a scatterplot of these data. b. What does the scatterplot suggest about the relation- ship between x and y? c. Given that SSxx = 3.4286, 43.4286, SSy = 39.8571, ỹ and x = 3.7143, calculate the least squares estimates of %3D %3D ху %3D %3D Bo and B1. d. Plot the least squares line on your scatterplot. Does the line appear to fit the data well? Explain. on the plot. e. Interpret the y-intercept and slope of the least squares line. Over what range of x are these interpretations meaningful? 14 65
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