A recent study of 15 shoppers showed that the correlation between the time spent in the store and the dollars spent was 0.235. Using a significance level equal to 0.05, which of the following is the appropriate null hypothesis to test whether the population correlation is zero?
A) H0 : r = 0.0
B) H0 : ρ = 0.0
C) H0 : μ = 0.0
D) H0 : ρ ≠ 0

Question

Quizplus · Accepted Answer

The appropriate null hypothesis for testing whether the population correlation coefficient (ρ) is zero is "H0 : ρ = 0.0". This tests if there is no linear relationship between the two variables in the population.

A Recent Study of 15 Shoppers Showed That the Correlation