The director of a shipping company believes that there is a relationship between the cost of a customer’s shipment (£) and the weight (lb) of the package being shipped. For investigating this possible relationship, a random sample of nine customer shipments was selected and the weight (in lb) and the cost (rounded to the nearest £) for each shipment were recorded. The results obtained are shown in the table below (on the picture). required: a) ) The scatter diagram showing the relationship between the cost of a customer’s shipment (£) and the weight (lb) of the package being shipped, is given below. Comment fully and clearly on this diagram. i) ii)

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The director of a shipping company believes that there is a relationship between the cost of a customer’s shipment (£) and the weight (lb) of the package being shipped. For investigating this possible relationship, a random sample of nine customer shipments was selected and the weight (in lb) and the cost (rounded to the nearest £) for each shipment were recorded. The results obtained are shown in the table below (on the picture).

required:

a) ) The scatter diagram showing the relationship between the cost of a
customer’s shipment (£) and the weight (lb) of the package being shipped, is given below. Comment fully and clearly on this diagram.

i)

ii) 

 

9 / 22
109%
+
田の
-
Scatter Diagram
60
50
40
30
5:20
10
4
10
12
14
16
18
Weight of a package (Ib)
(b)
i.
Show clearly the first two calculations that led to >x² =1,592 and
ΣΥ13,165.
Show that x? #(Ex)*.
ii.
Cost of shipment (£)
Transcribed Image Text:9 / 22 109% + 田の - Scatter Diagram 60 50 40 30 5:20 10 4 10 12 14 16 18 Weight of a package (Ib) (b) i. Show clearly the first two calculations that led to >x² =1,592 and ΣΥ13,165. Show that x? #(Ex)*. ii. Cost of shipment (£)
Weight of package (Ib)
Cost of shipment (£)
Shipment
(X)
(Y)
1
7
22
12
35
10
26
4
16
45
5
17
51
6
10
7
17
43
8
13
40
9
14
41
The scatter diagram showina the relationshin behaeen the cost of a
32
2.
Transcribed Image Text:Weight of package (Ib) Cost of shipment (£) Shipment (X) (Y) 1 7 22 12 35 10 26 4 16 45 5 17 51 6 10 7 17 43 8 13 40 9 14 41 The scatter diagram showina the relationshin behaeen the cost of a 32 2.
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