A mobile computer network consists of a number of computers (called nodes) that communicate with each other while moving throughout a region. A node that is out of transmission range of the other nodes, so that it is unable to communicate, is said to be partitioned. In studies carried out at the Colorado School of Mines, S. Kurkowski found that in a network containing 187 nodes in which destinations were chosen at random from a uniform distribution, 19 nodes were partitioned. J. Norman found that in a network containing 170 nodes whose movements mimicked those on a college campus, 30 nodes were partitioned. Let px represent the population proportion of partitioned nodes in the network that mimicked those on a college campus and let py represent the population proportion of partitioned nodes in the network whose destinations were chosen at random. Find a 99% confidence interval for the difference px-py. Round the answers to four decimal places. The 99% confidence interval is ( ' ).

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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A mobile computer network consists of a number of computers (called nodes) that communicate with each other while moving
throughout a region. A node that is out of transmission range of the other nodes, so that it is unable to communicate, is said to be
partitioned. In studies carried out at the Colorado School of Mines, S. Kurkowski found that in a network containing 187 nodes in which
destinations were chosen at random from a uniform distribution, 19 nodes were partitioned. J. Norman found that in a network
containing 170 nodes whose movements mimicked those on a college campus, 30 nodes were partitioned. Let px represent the
population proportion of partitioned nodes in the network that mimicked those on a college campus and let py represent the
population proportion of partitioned nodes in the network whose destinations were chosen at random. Find a 99% confidence interval
for the difference px-py. Round the answers to four decimal places.
The 99% confidence interval is (
'
).
Transcribed Image Text:A mobile computer network consists of a number of computers (called nodes) that communicate with each other while moving throughout a region. A node that is out of transmission range of the other nodes, so that it is unable to communicate, is said to be partitioned. In studies carried out at the Colorado School of Mines, S. Kurkowski found that in a network containing 187 nodes in which destinations were chosen at random from a uniform distribution, 19 nodes were partitioned. J. Norman found that in a network containing 170 nodes whose movements mimicked those on a college campus, 30 nodes were partitioned. Let px represent the population proportion of partitioned nodes in the network that mimicked those on a college campus and let py represent the population proportion of partitioned nodes in the network whose destinations were chosen at random. Find a 99% confidence interval for the difference px-py. Round the answers to four decimal places. The 99% confidence interval is ( ' ).
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