A researcher conducted a study to determine if CBD oil reduced test anxiety more than a placebo. She found that there was no significant difference between CBD oil and placebo. However, she did not conduct a power analysis before her study but she found that the 50 participants she included gave her power = .50. Which of the following conclusions is (are) most appropriate? O She should have rejected the null hypothesis O She could have made a Type I error O She could have made a Type II error O She could have correctly failed to reject the null hypothesis Both A & B Both C & D

A researcher conducted a study to determine if CBD oil reduced test anxiety more than a placebo. She found that there was no significant difference between CBD oil and placebo. However, she did not conduct a power analysis before her study but she found that the 50 participants she included gave her power = .50. Which of the following conclusions is (are) most appropriate? O She should have rejected the null hypothesis O She could have made a Type I error O She could have made a Type II error O She could have correctly failed to reject the null hypothesis Both A & B Both C & D

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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