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). The data can be found in
the fi le 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?

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