Answered: Using a 5% level of significance, test…

Using a 5% level of significance, test the hypothesis that more than 3% of their electric vehicles require maintenance in the first year of ownership.

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 3E

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Question

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An electric automobile manufacturer states that 3% or less of its of its vehicles require maintenance in the first year of ownership. In a sample of 40 of their electric automobiles it was found that 2 required maintenance in the first year of ownership. Using a 5% level of significance, test the hypothesis that more than 3% of their electric vehicles require maintenance in the first year of ownership.

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