For the questions above, you used the http://how-old.net site to determine whether wearing glasses, smiling, or squinting made a difference in the age that was reported. Think about the hypothesis testing statements that would be used for these types of experiments.

7/What is the population parameter being tested: population mean (), population proportion (p), or population mean difference (diff)?

8/What are the null and alternative hypothesis statements if you are interested in the question, "Does smiling make you look younger?"Write the hypotheses first in words, and then write them in proper statistical notation showing the parameter being tested(see preceding question)and the value that it is being tested against(the null value).

-9/What are the null and alternative hypothesis statements if you are interested in the question, "Does squinting make you look older?"Write the hypotheses first in words, and then write them in proper statistical notation showing the parameter being tested(, p, or diff)and the value that it is being tested against(the null value).

-10/What are the null and alternative hypothesis statements if you are interested in the question, "Does wearing sunglasses fool the machine?"Write the hypotheses first in words, and then write them in proper statistical notation showing the parameter being tested(, p, or diff)and the value that it is being tested against(the null value).