Conclude the first and third quartile.
Consumer Review posts reviews as well as ratings of a variety of products on the internet. The following is a sample of 20 speaker systems and their ratings. The ratings are on a scale of 1 to 5, with 5 being the best
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Speaker
|
Rating
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Infinity Kappa 6.1
|
4
|
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Allison One
|
4.12
|
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Cambridge Ensemble II
|
3.82
|
|
Dynaudio Contour 1.3
|
4
|
|
Hsu Rsch. HRSW12V
|
4.56
|
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Legacy Audio Focus
|
4.32
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Mission 73li
|
4.33
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PSB 400i
|
4.5
|
|
Snell Acoustics D IV
|
4.64
|
|
Thiel CS1.5
|
4.2
|
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ACI Sapphire III
|
4.67
|
|
Bose 501 Series
|
2.14
|
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DCM KX-212
|
4.09
|
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Eosone RSF1000
|
4.17
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Joseph Audio RM7si
|
4.88
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Martin Logan Aerius
|
4.26
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Omni Audio SA 12.3
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2.32
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Polk Audio RT12
|
4.5
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Sunfire True Subwoofer
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4.17
|
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Yamaha NS-A636
|
2.17
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Compute the first and third quartiles