If people are classified by age (over 30/under 30) and by political affiliation

Question

If people are classified by age (over 30/under 30) and by political affiliation (Democrat/Republican), then the point-biserial correlation would be the proper technique to measure the relationship between the two variables True False As the sample size gets larger, what happens to the size of the correlation that is needed for significance? It also gets larger It gets smaller It stays constant There is no consistent relationship between sample size and the critical value for a significant correlation For a two-tailed hypothesis test evaluating a Person correlation. what is stated by the null hypothesis? There is a non-zero correlation for the general population The population correlation is zero There is a non-zero correlation for the sample The sample correlation is zero

Explanation / Answer

Answer:

Question 35.

False.

A point-biserial correlation is used to measure the strength and direction of the association that exists between one continuous variable and one dichotomous variable

Question 36.

It gets smaller.

Question 37.

The population correlation is zero.

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