A student researcher finds a Pearson's r of +.75 for a sample of 240 people. Even without doing a formal null hypothesis test, what can you tell her about her result?
A) The result was probably due to chance.
B) The result is statistically significant.
C) The null hypothesis is true.
D) She made a mistake in computing Pearson's r.

Question

Quizplus · Accepted Answer

A Pearson's r of +.75 is a strong correlation and with a sample size of 240, it is likely statistically significant. However, without a formal statistical test, we cannot say for certain.

A Student Researcher Finds a Pearson's R of