To find the 10% trimmed mean of a data set, order the data, delete the lowest 10%

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To find the 10% trimmed mean of a data set, order the data, delete the lowest 10% of the entries and the highest 10% of the entries, and find the mean of the remaining entries.

(a) Find the 10% trimmed mean for the data in Exercise 65.

(b) Compare the four measures of central tendency, including the midrange.

(c) What is the benefit of using a trimmed mean versus using a mean found using all data entries? Explain your reasoning.

Data in Exercise 65

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Elementary Statistics Picturing The World

ISBN: 9780321911216

6th Edition

Authors: Ron Larson, Betsy Farber

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Question Posted: Nov 24, 2015 06:22 AM

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To find the 10% trimmed mean of a data set, order the data, delete the lowest 10%

Question:

Test scores 44 51 11 90 76 36 64 37 43 72 53 62 36 74 51 72 37 28 38 61 47 63 36 41 22 37 51 46 85 13

Step by Step Answer:

a Order the data values 11 13 22 28 36 36 36 37 37 37 38 41 43 44 46 47 51 51 51 53 61 62 63 64 72 ...View the full answer

Elementary Statistics Picturing The World

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