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Author Question: Construct a data set for which the range is misleading as a measure of variation. Explain why the ... (Read 62 times)

geoffrey

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on: Jul 25, 2018
Construct a data set for which the range is misleading as a measure of variation. Explain
  why the range is misleading and suggest an alternative measure of variation.
 
  What will be an ideal response?

Question 2

Last year, nine employees of an electronics company retired. Their ages at retirement are listed
  below.
  51 61 62 57 50 67 68 58 53
 
  A) 51 yr, 61 yr, 62 yr, 57 yr, 50 yr, 67 yr, 68 yr, 58 yr, 53 yr
  B) 58 yr
  C) 58.6 yr
  D) no mode


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atrochim

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Reply #1 on: Jul 25, 2018
Answer to Question 1

Answers will vary. The data set should contain an outlier, which will tend to make the range quite large even though
the remaining data may be bunched fairly close together. In general, the standard deviation or variance are more
reliable measures of variation.

Answer to Question 2

D


geoffrey

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Reply 2 on: Jul 25, 2018
Thanks for the timely response, appreciate it

xiazhe

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Reply 3 on: Yesterday
Excellent

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