Can somebody please help me with the following word problem? I am confused and don't know how to figure it out.
A researcher believes that family size has increased in the past decade in comparison to the previous decade- that is, people are now having more children than they were before. What are the null and alternative hypotheses in a study designed to assess this? Is this a one-tailed hypotheses test or two-tailed hypotheses test?
A researcher believes that family size has increased in the past decade in comparison to the previous decade- that is, people are now having more children than they were before. What are the null and alternative hypotheses in a study designed to assess this? Is this a one-tailed hypotheses test or two-tailed hypotheses test?