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John needs to find out how accurately a website can guess his age (24). More importantly, are there any characteristics that influence its determination of how old he is?
John uploaded photos of himself to a website that guesses his age.
-value (guess - true age) when wearing sunglasses? 13
-value (guess - true age) when not wearing sunglasses? -4
-value (guess - true age) when smiling? -4
-value (guess - true age) when not smiling? -1
-value (guess - true age) when squinting ? -1
-value (guess - true age) when eyes are wide open? -10
1.What is the population parameter being tested (population mean, μ, population proportion, p, or population mean difference, μdiff )?
2.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, then write them in proper Statistical notation showing the parameter being tested (population mean, μ, population proportion, p, or population mean difference, μdiff ) and the value that it is being tested against (the null value).
3.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, then write them in proper Statistical notation showing the parameter being tested (population mean, μ, population proportion, p, or population mean difference, μdiff ) and the value that it is being tested against (the null value).
4.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, then write them in proper Statistical notation showing the parameter being tested (population mean, μ, population proportion, p, or population mean difference, μdiff ) and the value that it is being tested against (the null value).
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