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Here's a table that shows t values for a correlation of p = 0.2 for various values of sample size, n. The t values are calculated for an a of 0.05. t score for a correlation n t t crit for alpha 10 0.577 2.262 20 0.866 2.093 30 1.080 2.045 40 1.258 2.023 60 1.555 2.001 80 1.803 1.990 100 2.021 1.984 120 2.217 1.980 140 2.398 1.977 160 2.566 1.975 180 2.723 1.973 200 2.872 1.972 How large of a sample would you recommend for me to be sure that my result of a correlation of 0.2 is statistically significant at the 0.05 level?

Here's a table that shows t values for a correlation of p = 0.2 for various values of sample size, n. The t values are calculated for an a of 0.05. t score for a correlation n t t crit for alpha 10 0.577 2.262 20 0.866 2.093 30 1.080 2.045 40 1.258 2.023 60 1.555 2.001 80 1.803 1.990 100 2.021 1.984 120 2.217 1.980 140 2.398 1.977 160 2.566 1.975 180 2.723 1.973 200 2.872 1.972 How large of a sample would you recommend for me to be sure that my result of a correlation of 0.2 is statistically significant at the 0.05 level?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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 2AGP
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Here's a table that shows t values for a correlation of p = 0.2 for various values of sample size, n. The t values are calculated for an a of 0.05. t score for a correlation n t t crit for alpha 10 0.577 2.262 20 0.866 2.093 30 1.080 2.045 40 1.258 2.023 60 1.555 2.001 80 1.803 1.990 100 2.021 1.984 120 2.217 1.980 140 2.398 1.977 160 2.566 1.975 180 2.723 1.973 200 2.872 1.972 How large of a sample would you recommend for me to be sure that my result of a correlation of 0.2 is statistically significant at the 0.05 level?
Transcribed Image Text:Here's a table that shows t values for a correlation of p = 0.2 for various values of sample size, n. The t values are calculated for an a of 0.05. t score for a correlation n t t crit for alpha 10 0.577 2.262 20 0.866 2.093 30 1.080 2.045 40 1.258 2.023 60 1.555 2.001 80 1.803 1.990 100 2.021 1.984 120 2.217 1.980 140 2.398 1.977 160 2.566 1.975 180 2.723 1.973 200 2.872 1.972 How large of a sample would you recommend for me to be sure that my result of a correlation of 0.2 is statistically significant at the 0.05 level?
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