A school administrator believes that 80% of the students at his large school arrive by bus, 10% drive themselves, and 10% are dropped off by an adult. To investigate this belief, the administrator stands at the school entrance and asks the first 80 students who come through the door how they came to school. He would like to know if the data provide convincing evidence that the distribution of transportation method differs from what he believes it to be. Are the conditions for inference met? O No, the random condition is not met. O No, the 10% condition is not met. O No, the Large Counts condition is not met. Yes, all of the conditions for inference are met.

A school administrator believes that 80% of the students at his large school arrive by bus, 10% drive themselves, and 10% are dropped off by an adult. To investigate this belief, the administrator stands at the school entrance and asks the first 80 students who come through the door how they came to school. He would like to know if the data provide convincing evidence that the distribution of transportation method differs from what he believes it to be. Are the conditions for inference met? O No, the random condition is not met. O No, the 10% condition is not met. O No, the Large Counts condition is not met. Yes, all of the conditions for inference are met.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 2E

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