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A sample of n=30 scores (X and Y values) produces a correlation ofr = -0.37. Are

ID: 2919040 • Letter: A

Question

A sample of n=30 scores (X and Y values) produces a correlation ofr = -0.37. Are these sample data sufficient to conclude thatthere is a significant non-zero correlation between X and Y in thepopulation? Test at the 0.05 level of significance.
How do I state the null hypothesis, using symbols? For these date, df = The critical value for for r = What conclusion do I get for the hypothesis, including ifdecided at a p < or > 0.05?
THANKS ... I REALLY NEED YOUR HELP.
How do I state the null hypothesis, using symbols? For these date, df = The critical value for for r = What conclusion do I get for the hypothesis, including ifdecided at a p < or > 0.05?
THANKS ... I REALLY NEED YOUR HELP.

Explanation / Answer

Given n=30, r=-0.37, =0.05 The test hypothesis is Ho:=0 (uncorrelated) Ha:
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