In a survey of statistics students at Hope College, two of the questions asked were their weight (in pounds) and the cost of their last haircut, including any hair treatments (in dollars). Th e data can be found in the file Weight- Haircut. Let’s explore whether or not there is evidence of a strong association between weight and cost of haircuts.

a. State the appropriate null and alternative hypotheses.

b. Conduct a simulation analysis with 1,000 repetitions. What is your p-value?

c. Summarize your conclusion from this simulation analysis. If there is an association, describe if it is positive or negative in the context of the study.

d. Can you conclude a cause and effect between weight and cost of a haircut? Why or why not?