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Wednesday, November 14, 2012

WOF placement - Motorcycles

If your bike has a windscreen your WOF should be on the windscreen. If it doesn't it can be anywhere else on the bike.

Your registration should be displayed on or near the licence plate.

Thursday, October 11, 2012

Get Indexed by Google Quickly

In this video Matt Cutts points out a feature of Google Webmaster Tools that essentially allows you to manually update Google's record of your webpage. The fetch as google bot function used to simply show you how google would see your page but now it can be used to refresh, or create, Google's record of a page on your website. For established websites this is very useful if some important information needs to be changed, a common example being a change in the price of a product or service. For new websites this should enable webmasters to get their content indexed more quickly than waiting for a google bot to crawl their content naturally. Interestingly Matt also points out that this feature gives you the option of crawling the linked content on that page as well. This is an excellent way for new sites to get into the index especially if a main navigation page is submitted to the fetch as google bot feature.


Friday, September 21, 2012

ValueBasket.co.nz - Trustworthy?

I'm currently in the market for a new camera and the one I'm looking at is reasonably expensive. While Local retailers do vary a little in price they are all much of a muchness. In my search for a good deal on my camera equipment I turned to the internet and turned up a website that I had never heard of before

Valuebasket.co.nz

Their site appeared well presented and they had a local phone number but I couldn't shake the feeling that something might be up. The difference in price was considerable but believable which kept the too good to be true alarm from going off. With no other signals left I turned to the internet and a deeper investigation of the website itself.

The first thing to understand about Valuebasket.co.nz is that it isn't really a .co.nz at all. While they own the webdomain their contact page makes no real mention of NZ. In fact Valuebasket.co.nz is part of ValueBasket.com, a Hong Kong based company shipping products worldwide from a number of dispatch centres. This is common practice and, while a tad annoying, there's nothing really wrong with doing this. As long as their service is good who cares where the company is based and where the products are coming from right?

Wrong... ish. Given the value of the item that we're talking about it would be great to know that there was a physical location for ValueBasket somewhere in NZ where I could go if something goes wrong. While there is a phone number that's not really enough to satisfy the sceptic in me.

Given that there is nowhere for me to physically go in the event that something goes wrong ValueBasket's online reputation becomes very important. Unfortunately that reputation isn't a good one at the review site below the pie chart of reviews is dangerously red and full of warnings to stay away. While the odd negative review is acceptable 1 star ratings in over 25% of cases is super concerning.

http://www.trustpilot.co.uk/review/valuebasket.com

As a reference point sites that you would expect to score well do so and have far far fewer 1 star reviews

http://www.trustpilot.co.uk/search?query=amazon


Wednesday, September 19, 2012

D600 real world field test



This is an early field test with the D600. It seems to hold up quite well.
As has been a common theme it is similar in feel and styling to the D7000.
It's looking good for photographers but less good for videographers as apertrure cannot be adjusted while in live view/movie recording.

Tuesday, September 18, 2012

D600 vs D7000 - Hands on with Matt Granger



As has long been rumoured the D600 appears to be fairly similar to the D7000 in terms of build quality and feel.


http://www.flickr.com/photos/66174868@N02/sets/72157631557088349/

Sunday, September 16, 2012

Equivalence Tests - Statistics for Psychology

I'M STILL WORKING THROUGH THIS - IF YOU KNOW WHAT THIS IS ALL ABOUT READ ON AND FEEL FREE TO POINT OUT ERRORS - IF YOU DON'T KNOW WHAT THIS IS ALL ABOUT YOU MAY LIKE TO CHECK BACK LATER

One of the most common misconceptions about p-values is that large p-values show that there is no difference between the conditions that you are comparing. To put it more simply many students interpret a p-value of more than .05 as evidence that the conditions are the same (not different). This is incorrect and reflects an easy fundamental misunderstanding of how p-values are calculated and what influences them. Consider the case where you have two groups that have different mean scores and large standard deviations. In this case the values from each group are highly variable and likely to overlap. Unless you have a large sample size a t-test will be unable to detect this difference; it will return a p-value of greater than .05 even though we know that the true means of the 2 groups are different.

If you want to show that 2 (or more) groups are the same you need to conduct an equivalence test. In an equivalence test your null hypothesis and experimental hypothesis are reversed - your null hypothesis is that the groups are different and your experimental hypothesis is that they are the same. One way to do this is to define two reference points. The first is the point at which you will accept that group 1's score is lower than group 2's. The second is the point at which you will accept that group q's is higher than group 2's. Difference scores falling between these two points allow you to say that the 2 scores are equivalent.

While this sounds straightforward the difficulty comes in setting these two points. While a standard test checks to see if the difference between groups is different to 0 you now have 2 tests checking to see if the difference is greater than and less than some number. Importantly these some numbers do not have a standard definition. You must come up with these points and you must come up with them before running your analysis. Afterall, if you come up with them afterwards what's to stop you picking numbers that will work well for your data set?

While some papers provide example numbers that can provide a useful guideline it is more important to consider why you are running the test and what you are hoping to find. For example if you are comparing 2 drugs for pain relief you might consider a 10% difference in subjective pain relief ratings to be clinically unimportant. This decision would give you your 2 reference points and also highlights an important point about these tests - they are not testing to see whether things are identical, they are testing to see whether or not they are equivalent.

That being said assuming that you wanted to test whether or not two things could be identical one clear item to use to help define your reference points would be your measure of error.

Wednesday, September 12, 2012

NZ Lottery Scam


Dear Winner,

This notification memo has been sent to you three times without a response from you and this will be the last time and I do hope you receive it. This is to inform you that your winnings dated Saturday, Draw: 1298,Saturday, April 21, 2012 under the NEW ZEALAND LOTTERY promotional lottery draw.

Your e-mail address attached to ticket number: 564756063211- 884 with Serial number: 6312/08 which emerged the New Zealand Jackpot winning number:7 16 31 38 39 40  28 2. Supplementary Strike Numbers: 31 40 38 16. Please check the website below to confirm your  Winning Numbers still remains unclaimed. The expiration date has drawn close. All unclaimed fund after the 180 days expiration date will be rolled over into future draws.
You won   $1,000,000.00 in Division 1 NZ LOTTO Promotions
Your inability to attend the award presentation has necessitated this reminder. As a matter of urgency you are required to contact the payment officer with the contact details stated below to be better informed on what is required to lay claims to your winnings.
Peter  Mallory
New Zealand Lottery Corporation UK,
Thames Camp Valley Park,
Reading Berkshire RG61WG, United Kingdom
Tel: + 44-704 571 3624
Tel: + 44-702 409 3871
Tel: + 44-702 406 0898
FAX: + 44-844 774 6162
Email Address:perter_a@aol.com
NOTICE: The information contained in this e-mail may be confidential, legally privileged and protected by law. Access by the intended recipient only is authorized. If you are not the intended recipient, kindly notify the sender immediately. Unauthorized use, copying or dissemination hereof is strictly prohibited. Save for bona fid  departmental purposes, The New Zealand Lotteries Commission does not accept responsibility for the Contents or opinions did not express in this e-mail, nor does it warrant this communication to be free from errors,