4. A researcher examined whether an over-the-counter cold medication has an effect on mental alertness. A sample of n = 16 participants is obtained, and each person is given a standard dos of the medication one hour before being tested on a driving simulation task. For the general population, scores on the simulation task are normally distributed with u = 60 ando = 8. The individuals in the sample had an average score of M = 56. Use a two-tailed test with a = .05.

4. A researcher examined whether an over-the-counter cold medication has an effect on mental alertness. A sample of n = 16 participants is obtained, and each person is given a standard dos of the medication one hour before being tested on a driving simulation task. For the general population, scores on the simulation task are normally distributed with u = 60 ando = 8. The individuals in the sample had an average score of M = 56. Use a two-tailed test with a = .05.

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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