State the null and alternative hypotheses for each of the following:
You want to show an increase in buying and selling of single-family homes this year when compared with last year’s rate.
You are testing a new recipe for “low-fat” cheesecake and expect to find that its taste is not as good as traditional cheesecake.
You are trying to show that music lessons have a positive effect on a child’s self-esteem.
You are investigating the relationship between a person’s gender and the automobile he or she drives