MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The weight of a male bald eagle has approximately a normal distribution with mean ?= 7.4 pounds and a standard deviation of ?= 1.6 pounds. Suppose we take a random sample of n=64 male bald eagles. Let X̄ be the random variable representing the mean weight in pounds of the 64 sampled male bald eagles. Let Xtot be the random variable representing sum of the weights of the 84 sampled bald eagles.
a) About what proportion of male bald eagles have weights between 7.0 and 7.8 pounds?
b) About what proportion of male bald eagles have weights greater than 7.8 pounds?
c) About how many of the 64 sampled male bald eagles would you expect to have weight greater than 7.8 pounds? (nearest integer)?
d) About how many of the 64 sampled male bald eagles would you expect to have weight between 7.0 and 7.8 pounds? (nearest integer)?
e) What is the standard deviation of the distribution of X̄ (in pounds)?
f) What is the standard deviation of the distribution of Xtot (in pounds)?
g) What is the probability that 7.38 < X̄ < 7.42 pounds ?
h) What is the probability that Xtot >480 pounds?
f) Copy your R script for the above into the text box here.
Please write out the full Rscript and show correct work. Thank you.
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