A work-standards expert observes the amount of time required to prepare a sample of 10 business letters in an office with the following results listed in ascending order to the nearest minute: 5, 5, 5, 7, 9, 14, 15, 15, 16, 18. Determine the (i) Range (ii) Middle 70 percent for the sample. (iii) Sample variance of the preparation-time data
A work-standards expert observes the amount of time required to prepare a sample of 10 business letters in an office with the following results listed in ascending order to the nearest minute: 5, 5, 5, 7, 9, 14, 15, 15, 16, 18. Determine the (i) Range (ii) Middle 70 percent for the sample. (iii) Sample variance of the preparation-time data
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A work-standards expert observes the amount of time required to prepare a sample of 10 business letters in an office with the following results listed in ascending order to the nearest minute: 5, 5, 5, 7, 9, 14, 15, 15, 16, 18. Determine the
(i)
(ii) Middle 70 percent for the sample.
(iii) Sample variance of the preparation-time data
(iv) Compute the coefficient of skewness for the data analyzed
(v) Determine the coefficient of variation for the data analyzed
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