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Author Question: If the relationship between two variables has a linear correlation coefficient (r) = 0.30, what is ... (Read 132 times)

humphriesbr@me.com

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on: Jun 29, 2018
If the relationship between two variables has a linear correlation coefficient (r) = 0.30, what is the coefficient of determination?

Question 2

A two-tailed t-test is appropriate when the researcher has a directional hypothesis implying that an observed mean can only be greater than or less than a hypothesized value.
 
 Indicate whether the statement is true or false


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anoriega3

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Reply #1 on: Jun 29, 2018
Answer to Question 1

r2, the coefficient of determination, is 0.09.

calculation: (0.30.3) = 0.9

Answer to Question 2

F
A one-tailed test is appropriate in this situation. A two-tailed test is one that tests for differences from the population mean that are either greater or less.


humphriesbr@me.com

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Reply 2 on: Jun 29, 2018
Thanks for the timely response, appreciate it

carojassy25

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Reply 3 on: Yesterday
Wow, this really help

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