Question

A sample of n = 25 pairs of scores (X and Y values) produces a correlation of r = -0.40. Are these sample data sufficient to conclude that there is a significant non-zero correlation between X and Y in the population? Use a two-tailed test at the 0.05 level of significance.

Name: a sample of n 25 pairs of scores x and y values produces a correlation of r 040 are these sample data sufficient to conclude that there is a significant non zero correlation between x and y 30655
Uploaded: 2022-05-13T21:33:40-08:00
Duration: 3 min 3 s
Channel: David Nguyen
Description: a sample of n 25 pairs of scores x and y values produces a correlation of r 040 are these sample data sufficient to conclude that there is a significant non zero correlation between x and y 30655

          A sample of n = 25 pairs of scores (X and Y values) produces a correlation of r = -0.40. Are these sample data sufficient to conclude that there is a significant non-zero correlation between X and Y in the population? Use a two-tailed test at the 0.05 level of significance.

Added by Derrick D.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert David Nguyen

05/13/2022

Step 1

- Null hypothesis (\(H_0\)): There is no correlation between X and Y in the population (\(\rho = 0\)). - Alternative hypothesis (\(H_a\)): There is a non-zero correlation between X and Y in the population (\(\rho \neq 0\)). Show more…

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A sample of n = 25 pairs of scores (X and Y values) produces a correlation of r = -0.40. Are these sample data sufficient to conclude that there is a significant non-zero correlation between X and Y in the population? Use a two-tailed test at the 0.05 level of significance.