| reply to Dogfather
Re: Old data and biased source - the CWA who hate telecom mgt said by Dogfather:However, the results of Speedtest.net REFUTE absolutely the claims made in the CWA report. Sorry, but that is not the case. The measurements and results generated by Speedtest are neither rigorously controlled or reproducible with any reliability. So say that poorly controlled and processed data absolutely refutes another poor dataset is like saying one crazy man saying that aliens are green absolutely refutes the claims of another than aliens are purple.
And no I didn't miss the effect of IP changes on Speedtest.net's results. I clearly explained why your point is irrelevant in this instance and why IP changes make the result we would be trying to find (max line speed) more accurate. My mathematics skills are just fine. Please learn to read. My reading skills are fine... Your experimental design, measurement accuracy and statistics skills are in need of a refresher.
I have clearly explained why focusing on max speed not only creates an overly rosy picture of the state of broadband, but also affects the value of the data. Additionally, your methodology is deeply flaw because relevant data is excluded arbitrary on the flawed assumption of how IP addresses are issued.
Huh? Finding out what speeds are available is exactly how you represent the state of broadband. If everyone is just buying 1Mb plans but everyone can get 100Mb, median speed test results aren't an accurate indicator as to the state of anything other than the frugality of users. That requires the assumption that broadband speeds are uniform over a given area. Not true.
The IP changes of Speedtest.net lend themselves to skewing toward the maximum line speeds available in that geographic area for that particular ISP. I'll rehash this fact since you ignored it and it counters your assertion that using IP is a suitable way to determine location. That assumes that all providers hand out IP addresses into discrete geographic areas, not always true, especially with larger providers. I've seen numerous instances of end users on PPPoE pulling IPs from a POP three states over because of network conditions. Additionally, even in cable networks, it is possible for users in one town to pull an IP that was in use in another town/zip code/etc. due to the design of the network. So only using the highest speedtest result from an IP creates an inaccurate picture of broadband purchased or available. Period.
People don't choose their income. People choose what tier they buy. Missed the point again...
Your reading comprehension is lacking. Look at what the line before that says. said by Speedtest.net FAQ :
We first calculate the 95th percentile speed in each direction for every unique IP address that has tested at Speedtest.net. These numbers are then averaged together for each geographic level (both overall and per ISP).
They take the 95th percentile of everyone's top speed, and THEN average them. They don't average every result as you originally claimed. They only take the top speed result from every IP for this computation.
Given your poor reading comprehension I give little weight to what you claimed to have read. See below...
Wow, and you accuse someone else of having poor reading comprehension.
I stated that the raw data has some use and that was all. I never defended the study, the conclusions or the analysis, but thanks for making stuff up that is not there.
Before accusing others of having poor reading skills, you should make sure that yours are up to snuff and that you are not making crap up. Distorting statements to make your point, that's a new low.
My reading comprehension is just fine and I have in depth knowledge in data collection, the scientific method, P&S and how error rates affect conclusions. As evidenced by what you have posted, the evidence casts serious doubt on that statement.
The fact that you rigorously defend Speedtest, despite its data being trash due to poor control and test uniformity and only attack that Speedmatters data, which is also trash, betrays your real motive - the CWA disagrees with your viewpoint.
It is sad... I would figure that you might actually be interested in providing an accurate picture of the status of broadband in this country. As evidenced by your posts, that is not the case.
Your mind was made up before the discussion started and there is no changing it, no matter what, regardless of the data or problems with it. I'm not going to waste any more time on this, especially if you are going to resort to distortion...
Good day.
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