Suppose you wish to determine whether there are differences in the average prices among 3 major supermarkets. You randomly select 8 regularly bought items, each distinct item of the same brand, and observe their unit prices at each supermarket. The following data were obtained: Is there a need to block the items? Why? What other aspects could be considered that may influence the prices that are being recorded?
Suppose you wish to determine whether there are differences in the average prices among 3 major supermarkets. You randomly select 8 regularly bought items, each distinct item of the same brand, and observe their unit prices at each supermarket. The following data were obtained: Is there a need to block the items? Why? What other aspects could be considered that may influence the prices that are being recorded?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose you wish to determine whether there are differences in the average prices among 3 major supermarkets. You randomly select 8 regularly bought items, each distinct item of the same brand, and observe their unit prices at each supermarket. The following data were obtained:
Is there a need to block the items? Why?
What other aspects could be considered that may influence the prices that are being recorded?
Transcribed Image Text:Supermarket
A
В
Item
1
2.84
2.90
2.82
2
0.51
0.56
0.51
3
1.08
1.10
1.08
4
3.75
3.80
3.70
5
0.77
0.75
0.77
6.
1.59
1.54
1.63
7
0.82
0.77
0.77
8.
0.65
0.68
0.59
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