In a hearing test, subjects estimate the loudness (in decibels) of sound, and the results are;...
In a hearing test, subjects estimate the loudness (in decibels) of sound, and the results are; 12, 68, 74, 66, 37, 52, 71, 90, 65, 76, 73, 22. What are the outer fences?
Homework Answers
The values can br re written as
12, 22, 37, 52, 65, 66, 68, 71, 73, 74, 76, 90
Hence five point summary of the data will be as
Min= 12
Q1 =44.5
Q2= 67
Q3= 73.5
Max= 90
Hence IQR = Q3- Q1
=73.5-44.5
= 29
Hence the Outer fence is calculated as
Upper fence = Q3 + 1.5* IQR
= 73.5+ 1.5* 29
=73.5+ 43.5
=117
Lower Fence
= Q1- 1.5 *IQR
=44.5- 43.5
=1
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