- Two sample sets ( U ) and ( F ) that define the concentration ( EU/mg ) of endotoxin uncovered in urban and farm houses as follows:

U: 6.0 5.0 11.0 33.0 4.0 5.0 80.0 18.0 35.0 17.0 23.0

F: 2.0 15.0 12.0 8.0 8.0 7.0 6.0 19.0 3.0 9.8 22.0 9.6 2.0 2.0 0.5

- To identify the intend of a sample E ( U ) or E ( F ) the complying with formula from descriptive statistics is used:

*

Wbelow,

Xi : File iteration

n: Sample size

Thus,

*

- To determine the sample median we should arselection the information for both samples ( U ) and ( F ) in ascfinishing order as follows:

U: 4.0 5.0 5.0 6.0 11.0 17.0 18.0 23.0 33.0 35.0 80.0

F: 0.5 2.0 2.0 2.0 3.0 6.0 7.0 8.0 8.0 9.6 9.8 12.0 15.0 19.0 22.0

- Now uncover the mid worth for both sets:

Median term ( U ) = ( n + 1 ) / 2

= ( 11 + 1 ) / 2 = 12/2 = 6th term

Average ( U ), sixth term = 17.0

Mean term ( F ) = ( n + 1 ) / 2

= ( 15 + 1 ) / 2 = 16/2 = 8th term

Mean ( F ), 8th term = 8.0

- We will certainly now trim the smallest and largest monitoring from each set.

- In set ( U ) we see that smallest information corresponds to ( 4.0 ) while the largest information corresponds to ( 80.0 ). We will certainly exclude these two terms and the trimmed set is identified as:

U": 5.0 5.0 6.0 11.0 17.0 18.0 23.0 33.0 35.0

- In collection ( F ) we view that the smallest information corresponds to ( 0.5 ) while the largest information corresponds to ( 22.0 ). We will exclude these 2 terms and the trimmed collection is identified as:

F": 2.0 15.0 12.0 8.0 8.0 7.0 6.0 19.0 3.0 9.8 9.6 2.0 2.0

- We will aobtain use the previous formula to calculate implies of trimmed samples ( U" ) and ( F" ) as follows:

*

*

- The trimming portion is well-known as the amount of data rerelocated from the original sample from optimal and also bottom of sample size of 11 and 15, respectively.

- We rerelocated the smallest and also biggest value from each collection.


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Hence, a solitary value was removed from both height and bottom of each data collection. We deserve to express the trimming percent for each collection as follows: