STATISTICS (LL)
3rd Edition
ISBN: 9781119826453
Author: Lock
Publisher: WILEY
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Chapter E, Problem 5E
a.
To determine
Give a plot of distribution of yearly income for residents of Country U.
Give comments on the distribution.
b.
To determine
Provide relevant summary statistics for the yearly income for the residents of Country U.
c.
To determine
Give a plot showing the relationship between Income and Sex.
Give comments on the plot obtained.
d.
To determine
Explain the relationship between Income and Sex using appropriate summary statistics.
e.
To determine
Check whether there is any evidence that average yearly income differs for employed males and females in Country U.
Provide relevant hypotheses.
Calculate the p-value using randomization test.
Give conclusion in context.
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Listed in the accompanying table are weights (kg) of randomly selected U.S. Army male personnel measured in 1988 (from "ANSUR I 1988") and different weights (kg) of randomly selected U.S.
Army male personnel measured in 2012 (from "ANSUR II 2012"). Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not
assume that the population standard deviations are equal. Complete parts (a) and (b).
Click the icon to view the ANSUR data.
a. Use a 0.05 significance level to test the claim that the mean weight of the 1988…
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