Question

For a two-tailed hypothesis test evaluating a pearson correlation, what is stated by the null hypothesis?

a. there is a non zero correlation for the general population

b. there is a non zero correlation for the sample

c. the population correlation is zero

d. the sample correlation is zero

Answer 1

in general, hypothesis tests are used to test the reliability of a sample relative to a population

Answer 2

and the null hypothesis is usually about a population (since you are given the sample )

Answer 3

now you can use as a hint, what does the word null mean in null hypothesis

Answer 4

Im not sure

Answer 5

null usually means nothing , or zero

Answer 6

ie that there is no correlation between the two variables

Answer 7

oh okay so the population would have zero?

Answer 8

so the null hypothesis here would be that there is no correlation between the two variables in terms of their populations (not just the given sample)