How large a sample is needed for a correlation of r = 0.550 to be significant using a two-tailed ...

Author Question: How large a sample is needed for a correlation of r = 0.550 to be significant using a two-tailed ... (Read 78 times)

sdfghj

Hero Member
Posts: 552

on: Jun 20, 2018

How large a sample is needed for a correlation of r = 0.550 to be significant using a two-tailed test with = .05?

A) n = 14
B) n = 13
C) n = 12
D) n = 11

Question 2

A sample obtained from a population with = 12 has a standard error of 2 points. How many scores are in the sample?

A) n = 36
B) n = 24
C) n = 6
D) n = 3

samiel-sayed

Sr. Member
Posts: 337

Reply #1 on: Jun 20, 2018

Answer to Question 1

A

Answer to Question 2

A

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sdfghj

Hero Member
Posts: 552

Reply #2 on: Jun 20, 2018

Thank you!

samiel-sayed

Sr. Member
Posts: 337

Reply #3 on: Jun 20, 2018

Happy to help

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