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In a sample ofn = 20, the correlation between two variables is r = 0.7. Determine if this correlation is significant by calculating the t value and comparing it to the critical t-value in the table above. Do this for both .05 and .01 levels of significance. Ot = 2.92, significant at both .05 and .01 levels (two-tailed) Ot= 4.17, significant at both.05 and .01 levels (two-tailed) Ot= 2.77, significant at .05, but not at .01 level (two-tailed) Ot=4.38, significant at .05, but not at .01 level (two-tailed)

In a sample ofn = 20, the correlation between two variables is r = 0.7. Determine if this correlation is significant by calculating the t value and comparing it to the critical t-value in the table above. Do this for both .05 and .01 levels of significance. Ot = 2.92, significant at both .05 and .01 levels (two-tailed) Ot= 4.17, significant at both.05 and .01 levels (two-tailed) Ot= 2.77, significant at .05, but not at .01 level (two-tailed) Ot=4.38, significant at .05, but not at .01 level (two-tailed)

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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In a sample of n = 20, the correlation between two variables is r = 0.7. Determine if this correlation is significant by calculating thet value and comparing it to the critical t-value in the table above. Do this for both .05 and .01 levels of significance. Ot = 2.92, significant at both.05 and .01 levels (two-tailed) Ot= 4.17, significant at both .05 and .01 levels (two-tailed) O t = 2.77, significant at .05, but not at .01 level (two-tailed) Ot= 4.38, significant at .05, but not at .01 level (two-tailed)
Transcribed Image Text:In a sample of n = 20, the correlation between two variables is r = 0.7. Determine if this correlation is significant by calculating thet value and comparing it to the critical t-value in the table above. Do this for both .05 and .01 levels of significance. Ot = 2.92, significant at both.05 and .01 levels (two-tailed) Ot= 4.17, significant at both .05 and .01 levels (two-tailed) O t = 2.77, significant at .05, but not at .01 level (two-tailed) Ot= 4.38, significant at .05, but not at .01 level (two-tailed)
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