MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A data set lists weights (lb) of plastic discarded by households. The highest weight is
mean of all of the weights is
5.67
lb, the x=2.176
lb, and the standard deviation of the weights is
s=1.325
lb.a. What is the difference between the weight of
5.67
lb and the mean of the weights?b. How many standard deviations is that [the difference found in part (a)]?
c. Convert the weight of
5.67
lb to a z score.d. If we consider weights that convert to z scores between
−2
and 2 to be neither significantly low nor significantly high, is the weight of
5.67
lb significant?Expert Solution
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