. Describe the key features of each scatterplot in Figure 7.9. Figure 7.9: Key Features of Scatterplots Plot 1 Plot 2 001

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33. Describe the key features of each scatterplot in Figure 7.9.
Figure 7.9: Key Features of Scatterplots
Plot 1
Plot 2
34. A hockey fan was interested in predicting standings points (points) awarded to teams based on the
difference in offensive and defensive scoring rates (differential) for teams in the NHL. 2016-2017
data was obtained for teams in the eastern conference and is provided in the following table.
Obs
3.
4.
6.
8.
9.
10
11
12
13
14
15
16
Pts
65
58
56
55
52
50
49
49
72 68
65
63
56
51
49
49
Diff
25
4.
-4
12
-21
-10
-18
-21
54
46 31 38
-15
-14
-31
In addition, a table of summary statistics is provided below.
Mean
SD
Pts
56.6875
7.6657
0.9378
Diff
4.75
26.5393
(a) Identify the explanatory and response variables.
(b) Calculate the least squares regression line using formulas. A calculator may be used to chec
the results if desired. Report your line in context.
Transcribed Image Text:107 33. Describe the key features of each scatterplot in Figure 7.9. Figure 7.9: Key Features of Scatterplots Plot 1 Plot 2 34. A hockey fan was interested in predicting standings points (points) awarded to teams based on the difference in offensive and defensive scoring rates (differential) for teams in the NHL. 2016-2017 data was obtained for teams in the eastern conference and is provided in the following table. Obs 3. 4. 6. 8. 9. 10 11 12 13 14 15 16 Pts 65 58 56 55 52 50 49 49 72 68 65 63 56 51 49 49 Diff 25 4. -4 12 -21 -10 -18 -21 54 46 31 38 -15 -14 -31 In addition, a table of summary statistics is provided below. Mean SD Pts 56.6875 7.6657 0.9378 Diff 4.75 26.5393 (a) Identify the explanatory and response variables. (b) Calculate the least squares regression line using formulas. A calculator may be used to chec the results if desired. Report your line in context.
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