Suppose that a researcher obtains a correlation of r equals 0.60 for a sample of n equals 10 participants. Is this sample sufficient to conclude that a significant correlation exists in the population? Use a two-tailed test with alpha equal .05 if the sample had n equals 25 participants is the correlation significant? Use a two tailed test with alpha .05. What can you say about sample size based on your findings?

Suppose that a researcher obtains a correlation of r equals 0.60 for a sample of n equals 10 participants. Is this sample sufficient to conclude that a significant correlation exists in the population? Use a two-tailed test with alpha equal .05 if the sample had n equals 25 participants is the correlation significant? Use a two tailed test with alpha .05. What can you say about sample size based on your findings?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 24PFA

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Question

Suppose that a researcher obtains a correlation of r equals 0.60 for a sample of n equals 10 participants.

Is this sample sufficient to conclude that a significant correlation exists in the population? Use a two-tailed test with alpha equal .05

if the sample had n equals 25 participants is the correlation significant? Use a two tailed test with alpha .05.

What can you say about sample size based on your findings?

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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