Suppose that a researcher obtains a correlation of r = +.40 for a sample of n = 30 participants. Is this sample sufficient to conclude that a correlation exists in the population? Use a two-tailed test with α = .05. Group of answer choices r-critical = .361, Reject H0 (Conclude there is a correlation in the population) r-critical = .349, Reject H0 (Conclude there is a correlation in the population) r-critical = .361, Fail to Reject H0 (Conclude there is no correlation in the population) r-critical = .349, Fail to Reject H0 (Conclude there is no correlation in the population)

Suppose that a researcher obtains a correlation of r = +.40 for a sample of n = 30 participants. Is this sample sufficient to conclude that a correlation exists in the population? Use a two-tailed test with α = .05. Group of answer choices r-critical = .361, Reject H0 (Conclude there is a correlation in the population) r-critical = .349, Reject H0 (Conclude there is a correlation in the population) r-critical = .361, Fail to Reject H0 (Conclude there is no correlation in the population) r-critical = .349, Fail to Reject H0 (Conclude there is no correlation in the population)

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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Question

Group of answer choices

r-critical = .361, Reject H0 (Conclude there is a correlation in the population)

r-critical = .349, Reject H0 (Conclude there is a correlation in the population)

r-critical = .361, Fail to Reject H0 (Conclude there is no correlation in the population)

r-critical = .349, Fail to Reject H0 (Conclude there is no correlation in the population)

Definition Definition Relationship between two independent variables. A correlation tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

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