Changes

1.  Define the population.  It seems you're not really intending ''Hollywood'' to be a geographical term here, instead I believe you wish it to refer to 'women between 18-45 working in the entertainment business' - regardless of physical location.  Nothing wrong with this so far, that's a perfectly reasonable population to analyse.  Please correct my definition if you you think I'm paraphrasing you incorrectly.<br>

1.  Define the population.  It seems you're not really intending ''Hollywood'' to be a geographical term here, instead I believe you wish it to refer to 'women between 18-45 working in the entertainment business' - regardless of physical location.  Nothing wrong with this so far, that's a perfectly reasonable population to analyse.  Please correct my definition if you you think I'm paraphrasing you incorrectly.<br>

2.  Determine the size of that population.  This is where it starts to get tricky.  A global figure for young women between the ages of 18-45 could be estimated easily enough, but the number of people involved in the entertainment business may be harder to determine.  Do you wish your research to include, for example, hairdressers, make-up artists, production designers and art directors, as they would all work with the actors and singers and presumably work in a similar 'moral milleu'.  One problem here is that these women would typically work in the presence of chemicals, some of which may or may not be carcinogenic, which would need to be factored into the equations.  Another issue is - where does one include women from?  Are young Chinese actresses as likely to succumb to the perceived 'moral milleu' of the film business of Hong Kong (not known for its strict moral code either).    Might they be similarly affected.   What about Indian girls in Bollywood?  I notice that you are including Australians and UK residents, but what about French, German, Italians, etc?<br>

2.  Determine the size of that population.  This is where it starts to get tricky.  A global figure for young women between the ages of 18-45 could be estimated easily enough, but the number of people involved in the entertainment business may be harder to determine.  Do you wish your research to include, for example, hairdressers, make-up artists, production designers and art directors, as they would all work with the actors and singers and presumably work in a similar 'moral milleu'.  One problem here is that these women would typically work in the presence of chemicals, some of which may or may not be carcinogenic, which would need to be factored into the equations.  Another issue is - where does one include women from?  Are young Chinese actresses as likely to succumb to the perceived 'moral milleu' of the film business of Hong Kong (not known for its strict moral code either).    Might they be similarly affected?   What about Indian girls in Bollywood?  I notice that you are including Australians and UK residents, but what about French, German, Italians, etc?<br>

3.  Assuming you can eventually determine the total size of the population, then determine the rates of breast cancer in that total population.  This will be difficult, lengthy research, but it should be possible.  It would likely take many years of research though, as you will require data from health monitoring organizations around the globe.<br>

3.  Assuming you can eventually determine the total size of the population, then determine the rates of breast cancer in that total population.  This will be difficult, lengthy research, but it should be possible.  It would likely take many years of research though, as you will require data from health monitoring organizations around the globe.<br>

4.  Now factor in family medical histories, ethnic predispositions, working conditions, lifetime exposure to carcinogens, birth patterns, etc - and filter your data for these.<br>

4.  Now factor in family medical histories, ethnic predispositions, working conditions, lifetime exposure to carcinogens, birth patterns, etc - and filter your data for these.<br>