Question
In: Statistics and Probability
The finance manager for Widget Inc. would like to analyze the following sales data for Widget...
- The finance manager for Widget Inc. would like to analyze the following sales data for Widget Inc.in 2012.
|
39 |
35 |
84 |
68 |
72 |
52 |
46 |
60 |
|
50 |
55 |
60 |
57 |
55 |
56 |
73 |
74 |
|
78 |
63 |
70 |
49 |
56 |
91 |
57 |
54 |
|
50 |
41 |
59 |
57 |
62 |
59 |
44 |
79 |
|
62 |
57 |
51 |
85 |
67 |
69 |
52 |
85 |
|
49 |
66 |
56 |
60 |
56 |
46 |
64 |
60 |
- Calculate two statistics that measure variability. What do these statistics tell us about the data?
- Calculate two statistics that measure central tendency. What do these statistics tell us about the data?
- Create a frequency distribution of the sales data. (Include all five columns in your frequency distribution).
- Find the 80th percentile. What does this number represent?
Solutions
orchestra answered 1 year agoRelated Solutions
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Start by stating the hypothesis.
Online
In-Store
805.45
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780.27
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Salesperson
Years of
Experience
Annual Sales
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1
1
80
2
3
76
3
4
72
4
6
77
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8
92
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109
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9
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A sales manager collected the following data on annual sales for new customer accounts and the...
A sales manager collected the following data on annual sales for
new customer accounts and the number of years of experience for a
sample of salespersons. Salesperson Years of Experience Annual
Sales ($1000s)
1 1 80
2 2 100
3 3 106
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years of experience and y = annual sales ($1,000s). The
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ŷ = 83 + 4x.
Salesperson
Years of
Experience
Annual Sales
($1,000s)
1
1
80
2
3
97
3
4
102
4
4
107
5
6
103
6
8
116
7
10
119
8
10
123
9
11
127
10
13
136
(a)
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SST=SSR=SSE=
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Compute the coefficient...
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years of experience and y = annual sales ($1,000s). The
estimated regression equation for these data is
ŷ = 82 + 4x.
Salesperson
Years of
Experience
Annual Sales
($1,000s)
1
1
80
2
3
97
3
4
102
4
4
107
5
6
103
6
8
101
7
10
119
8
10
128
9
11
127
10
13
136
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Compute SST, SSR, and SSE.
SST=SSR=SSE=
(b)
Compute the coefficient...
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1
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