| pezus said: Not exactly reliable... "NPD’s data comes from surveying some 4,500 smartphone users in the US. It’s important to note that Q4 2013 didn’t include December and thus didn’t factor in the holiday season, as the findings were collected between September and November 2013 as well as September and November 2012." And yeah, the numbers are not for Q4 sales, but Q4 ownership out of those 4500 asked. I doubt this info is even statistically significant. |
1. 4,500 is a more than large enough sample to draw good conclusions from, even in a population of 300 Million. It's a point of basic stats that I get tired of re-iterating every time somebody reads a survey that says something they don't want to hear.
2. NPD's ownership numbers have been corroborated by Comscore, which reports Apple at 41% as a 3 month moving average ending November.
3.Excluding December likely skews the numbers against Apple, because Apple typically does extremely well during the holidays and as shown in the above graph, seems to have the growth momentum in the US right now.
4. If anything, installed base numbers like these are more important than quarterly sales. Actively used devices are the ones that developers can sell apps to, not just the devices bought in the past month. And I assure you that a change of 7% is statistically significant in this survey.
"The worst part about these reviews is they are [subjective]--and their scores often depend on how drunk you got the media at a Street Fighter event." — Mona Hamilton, Capcom Senior VP of Marketing
*Image indefinitely borrowed from BrainBoxLtd without his consent.
