A cellular phone service provider believes that there is negative correlation between the minutes used by its customers and the age of the customer.To test this,the following would be the appropriate null and alternative hypotheses:
H₀ : ρ = 0.0
H_a : ρ ≠ 0.0

Question

Quizplus · Accepted Answer

The null hypothesis should state that there is no correlation between the two variables (i.e. ρ = 0), while the alternative hypothesis should state that there is a negative correlation (i.e. ρ < 0). Thus, the appropriate null and alternative hypotheses are:
H0: ρ = 0
Ha: ρ < 0.

A Cellular Phone Service Provider Believes That There Is Negative