Question: For the following examples, specify which of the five parameters are appropriate. Give and define appropriate notation for the parameter of interest. If two symbols are involved, such as μ1 - μ2, define each symbol.
a. The parameter of interest is the proportion of the population that suffers from allergies.
b. The parameter of interest is the proportion of working adults who say that they would quit their jobs if they won a large amount in the lottery.
c. Does taking calcium help to reduce premenstrual symptoms? To investigate, we could devise a questionnaire that measured the severity of symptoms and then randomly assign women to take calcium or a placebo. The parameter of interest is the difference in what the population mean severity score would be if everyone took calcium versus the score if everyone took a placebo.