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 ( ' ).

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 ( ' ).

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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