The weights (in pounds) of 27 packages of ground beef are listed here in order from smallest to largest. 0.70 0.78 0.92 0.94 0.84 0.88 0.91 0.91 0.92 0.93 0.94 1.11 1.13 1.03 1.17 1.317 1.09 1.19 1.22 1.23 1.13 1.19 1.33 1.43 1.46 AUSE SALT 0.94 0.87 Find the sample mean (in lb). (Round your answer to four decimal places.) 1.048 Xlb Find the sample standard deviation (in lb). (Round your answer to four decimal places.) 0.2006 x lb Calculate the z-score for the smallest observation. (Round your answer to two decimal places.) 2--1.73 X Calculate the z-score for the largest observation. (Round your answer to two decimal places.) 22.05 X Are there any unusually large or small observations? Since the 2-score for the larger observation is larger than 2 in absolute value, the larger value is unusually large, Since the 2-score for the smaller observation is larger than 2 in absolute value, the smaller value is unusually small. Since both 2-scores exceed 2 in absolute value, both of the observations are unusual. Since neither 2-score exceeds 2 in absolute value, none of the observations are unusually small or large.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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The weights (in pounds) of 27 packages of ground beef are listed here in order from smallest to largest.
0.70 0.78 0.92 0.94 0.84 0.94 0.87
0.88 0.91 0.91 0.92 0.93 0.94 1.11
1.13
1.23
1.03 1.17
1.17 1.09 1.19 1.22
1.13 1.19 1.33 1.43 1.46
USE SALT
Find the sample mean (in lb). (Round your answer to four decimal places.)
1.048
Xlb
Find the sample standard deviation (in lb). (Round your answer to four decimal places.)
0.2006
xlb
Calculate the z-score for the smallest observation. (Round your answer to two decimal places.)
2--1.73
x
Calculate the z-score for the largest observation. (Round your answer to two decimal places.)
2=2.05
x
Are there any unusually large or small observations?
Since the 2-score for the larger observation is larger than 2 in absolute value, the larger value is unusually large.
Since the 2-score for the smaller observation is larger than 2 in absolute value, the smaller value is unusually small.
Since both 2-scores exceed 2 in absolute value, both of the observations are unusual.
Since neither z-score exceeds 2 in absolute value, none of the observations are unusually small or large.
Transcribed Image Text:The weights (in pounds) of 27 packages of ground beef are listed here in order from smallest to largest. 0.70 0.78 0.92 0.94 0.84 0.94 0.87 0.88 0.91 0.91 0.92 0.93 0.94 1.11 1.13 1.23 1.03 1.17 1.17 1.09 1.19 1.22 1.13 1.19 1.33 1.43 1.46 USE SALT Find the sample mean (in lb). (Round your answer to four decimal places.) 1.048 Xlb Find the sample standard deviation (in lb). (Round your answer to four decimal places.) 0.2006 xlb Calculate the z-score for the smallest observation. (Round your answer to two decimal places.) 2--1.73 x Calculate the z-score for the largest observation. (Round your answer to two decimal places.) 2=2.05 x Are there any unusually large or small observations? Since the 2-score for the larger observation is larger than 2 in absolute value, the larger value is unusually large. Since the 2-score for the smaller observation is larger than 2 in absolute value, the smaller value is unusually small. Since both 2-scores exceed 2 in absolute value, both of the observations are unusual. Since neither z-score exceeds 2 in absolute value, none of the observations are unusually small or large.
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