For the following bookstore sales data, the correlation is 0.965. Number of Salespeople Working Sales (in $1000) 2................................................................................................10 3................................................................................................11 7................................................................................................13 9................................................................................................14 10..............................................................................................18 10..............................................................................................20 12..............................................................................................20 15..............................................................................................22 16..............................................................................................22 20..............................................................................................26 x = 10.4............................................................................ŷ = 17.6 SD(x) = 5.64...............................................................SD(y) = 5.34 a) Prepare a scatterplot of Sales against Number of Salespeople working. b) What can you say about the direction of the association? c) What can you say about the form of the relationship?
For the following bookstore sales data, the
Number of Salespeople Working Sales (in $1000)
2................................................................................................10
3................................................................................................11
7................................................................................................13
9................................................................................................14
10..............................................................................................18
10..............................................................................................20
12..............................................................................................20
15..............................................................................................22
16..............................................................................................22
20..............................................................................................26
x = 10.4............................................................................ŷ = 17.6
SD(x) = 5.64...............................................................SD(y) = 5.34
a) Prepare a scatterplot of Sales against Number of Salespeople working.
b) What can you say about the direction of the association?
c) What can you say about the form of the relationship?
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