A biologist is attempting to determine the mean weight of African elephants. She conducts a sample of 60 elephants, and finds a sample mean of 8311 lbs., with a standard deviation of 127 lbs. Assume that the distribution of weights of African elephants is nearly normal. Define your variable: O Let u be the mean weight of all African elephants, in lbs.. o Let u be the mean weight of the sampled African elephants, in lbs.. Let p be the proportion of elephants that weigh . O Let p be the proprotion of elephants in the sample. Create and interpret a 95% Confidence Interval. Round your answers to one decimal place. and Select an answer lbs. What is the margin of error? Round your answer to one decimal place. lbs. Another biologist believes that the mean weight of elephants is 8346. What do you think of this claim? O The claim is above the sample mean, so there is no way it can be true. The claim is inside the interval. It is reasonable. The claim is inside the interval. It must be true. O That claim is not in our interval. We do not believe it.
A biologist is attempting to determine the mean weight of African elephants. She conducts a sample of 60 elephants, and finds a sample mean of 8311 lbs., with a standard deviation of 127 lbs. Assume that the distribution of weights of African elephants is nearly normal. Define your variable: O Let u be the mean weight of all African elephants, in lbs.. o Let u be the mean weight of the sampled African elephants, in lbs.. Let p be the proportion of elephants that weigh . O Let p be the proprotion of elephants in the sample. Create and interpret a 95% Confidence Interval. Round your answers to one decimal place. and Select an answer lbs. What is the margin of error? Round your answer to one decimal place. lbs. Another biologist believes that the mean weight of elephants is 8346. What do you think of this claim? O The claim is above the sample mean, so there is no way it can be true. The claim is inside the interval. It is reasonable. The claim is inside the interval. It must be true. O That claim is not in our interval. We do not believe it.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:ers to one decimal place.
n answer
/ Select an answer
We are 95% confident
that the mean weight of all
African elepants is
between
95% of the sampled
elephants weight between
95% of all elephants
weight between
We are 95% confident
that the mean weight of
the sampled elephants is
between
Let p be the proportion of pop song that ar-
Transcribed Image Text:A biologist is attempting to determine the mean weight of
African elephants. She conducts a sample of 60 elephants, and
finds a sample mean of 8311 lbs., with a standard deviation of
127 lbs. Assume that the distribution of weights of African
elephants is nearly normal.
Define your variable:
O Let u be the mean weight of all African elephants, in lbs..
O Let u be the mean weight of the sampled African elephants,
in lbs..
O Let p be the proportion of elephants that weigh .
O Let p be the proprotion of elephants in the sample.
Create and interpret a 95% Confidence Interval. Round your
answers to one decimal place.
and
Select an answer
lbs.
What is the margin of error? Round your answer to one decimal
place.
lbs.
Another biologist believes that the mean weight of elephants is
8346. What do you think of this claim?
O The claim is above the sample mean, so there is no way it
can be true.
The claim is inside the interval. It is reasonable.
The claim is inside the interval. It must be true.
That claim is not in our interval. We do not believe it.
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