This is not a sales/opinion/preference poll, so the answer is pretty clear cut (i.e., no ambiguity in interpreting whether an Xbox died or not).
That is has been explained in detail as to why it is important by a number of posts, by me and other posters also by
publicagenda,
American Statistical Assosiation ,
National Science Assosiation, this is where the links are coming from, they all say, You have to have data collected in a proper fashion, or else the results your going to get will be flawed.
Its irrelevant as to what you are polling. If you do not collect data in a proper fashion, and a specially if your sample is based on volunteers, they are going to get flawed because of personal interest (a person with a broken console is more interested in reporting this, than a person with a working one, for example) and biases.
When it comes to Xbox 360 population selection, I already acknowledged that date of purchase is missing....[cut out]... What else do you think will affect the poll result ? These additional data point can help to explain the data but they won't affect the outcome (of whether the box has indeed failed).
What part of people voluntarily seeking out this topic and voting, and people being randomly selected to participate in a poll dont you understand the difference of? Tell me and i will answer.
It has already been explained in the prior posts, and its also pointed out by the articles linked and quoted from made by the National Science and Statistics Associations: the fact alone that this is a voluntary poll is going to tamper with results.
What you think will affect the poll result or not is not something im going to try to bother spending more time on explaining, as your asking the exact same question regardless of the answer.
This has already been explained in detail several times.
Filtering out overlapping data is not as difficult as you thought in this case... via gamer tags, if someone really wants to tally these up. This is one of the rare cases where <b>I think</b> online polling have some advantages.
Really? YOU think polling have some advantages? What experience do you have with statistics, if you dont mind me asking?
Its not a matter of how hard it is to filter out overlapping data, its having data that is random enough to be accurate (sounds kinda wierd huh?) and that also fits certain (already explained characteristics in earlier posts) if your going to combine sample data. It is crazy hard.
Taking one flawed, unaccurate poll, and mixing it up with another flawed, unaccurate poll is not going to give you any meaningful numbers.
I explained to you in detail as to why its difficult to add samples like that. Even if we disregard the whole method of sample selection (and the fact that a webpoll would give you flawed results in terms of that), at the very minimum, these samples would have to be taken from different demographic groups
True, you have to click into the thread to see what's going on.... but isn't this the same as offline polling where people stop/call you and ask to participate in some survey about 360 failure ? I have rejected/particiapted in a few. You don't actively seek out the poll to propagate personal agenda (e.g., register as a new member to participate).
Sure, you may refuse to participate in a poll where you are selected. Ther fundamental difference to a person answering a poll that he himself decided to participate in, and a person agreeing to be polled, when he is randomly selected. Again, this does not have to be about registering as a new member, its about bothering to respond to something that may or may not interest you.
The short falls are:
* B3D community is not big
* Insufficient info collected to normalize/explain the dataset
* Entries should be per-box instead of per-user. Some users may exchange their 360s with new ones via store warranty, or have gone through multiple failed Xboxes.
No, even if 5000 people from B3D answered in this poll, it would still be wrong, because B3D is not going to give a an answer remotely similar to the real world. People at b3d have completely different buying and gaming habits than of the real world.
Then the whole way the data is collected is the biggest flaw.
Collecting more in dept information could be useful yes, but it wouldn't help in this case to make it any more valid.
Don't always write off online polls. All polling mechanisms have their flaws. If we use them correctly, we should be able to get what we want. But perhaps B3D is not the platform to explore this.
WOW. just wow.
I'm supposed to listen to YOU instead of the NATIONAL SCIENCE ASSOCIATION, NATIONAL STATISTICS ASSOCIATION, and the biggest poller in the states, and opposed to myself, which actually has an education in this stuff.
And why? Because your argument is that your able to use it correctly. (something that we people with real actual knowledge about this field aren't).
Your completely disregarding direct quotes from accomplished scientists.
Here, this is the telephone numbers to the Alfred Nobel Centre in Oslo, im sure they will know the proper people to contact in order to get you nominated, so you can win this million dollar price : +47 483 01 000
number is legit btw.