Archive for category Opinions

Cake Club – statistical analysis

Cake Club was a roller coaster ride of unexpected triumphs, unforeseen trouncings and – let’s be honest – a winner that nobody could have predicted.  If Nick’s win – after having to be persuaded to take part at all – taught us anything it is that in the topsy-turvy world of Cake Club, appearances and prejudice count for very little in the face of the wild whimsy of fate.  Or does it? Maybe Cake Club is a numbers game; maybe the results are predetermined by the influence of factors which are quite readily observed and quantified.  Only one type of person can help unravel such mysterious conundra – a statistician!

Sadly, we don’t have one of those on the staff so you’ll have to make do with me.  And I haven’t been in a statistics lecture for the fat end of a decade.

The first thing to do was obtain the data.  Obviously my memory is perfect in every way but, as it happens, I wasn’t present for every round so I just needed to double-check.  I had a look on this blog but sadly certain people have been less than rigorous about publishing up-to-the-minute status updates with regard to cake club concoctions and results so there were still some gaps, hem hem.  I did what I usually do in such situations and whinged at some volume to nobody in particular until I got some attention.  Luckily for all within earshot, Louise told me she had all the Cake Club emails saved in her outbox and promised to email them over once she had done some actual work, thanks Carl; shut up now.

The emails were a massive boon and I quickly decided on a strategy for recording the data, keying in names and departments into a big spreadsheet.  Here are the distributions by department:

Distribution by departmentInteresting what a disproportionate slice is given over to Marketing, given that only one of them actually got to the final.  This is, as any Liberal Democrat will tell you, a failing of the tournament system.

However, backslapping was not on my agenda.  I was interested in something far more interesting: the perfect Cake Club recipe!  I went back to the spreadsheet and created eight columns which contained 1 and 0 for ‘yes’ and ‘no’.  The first column recorded whether that cake won or not and the remaining seven recorded attributes of the cake.  The attributes ranged from ingredients (chocolate, fruit) through style (sponge, pie) to presentation (individual servings, sandwich).  I felt fully confident that I could seive out the statistically most successful cake and, with this information, travel back in time a fortnight and make sure that I won the final!

Here are the distributions of the various attributes.  Remember, there were 30 cakes in the tournament total:

Attribute populationsTwo thirds were sponge!  And over half had chocolate in!  But did popularity among bakers curry favour with the voters, or was it a recipe for disaster?  The proof is in the pudding.  I set up a more complex calculation, looking at the percentage of times a particular attribute won on occasions where it was used.  With such a small sample size (only three cakes in some cases) the results weren’t ever going to be accurate but I reckoned I could make some sort of rough comparison.

If an attribute had no effect we could assume it would win  exactly 50% of the time (as you can only either win or lose you have a 50% chance of either, assuming it’s random) so I subtracted 50% from each result to see which ones affected the score negatively (winning less often than 50% of the time) and which affected the score positively (winning more than 50% of the time).  The results are intriguing:

Winning statistics

Notice that the best-performing ingredient, nuts, is one of the least common and chocolate, by far the favoured flavour, makes a rather poor showing, doing worse than random.  People are indifferent about pies but sponge sandwiches are the way forward and despite the time and effort it takes a pretty special person to make a success out of cupcakes, almond mice etc.

It seems that the best possible cake is one in a sandwich format, with sponge and nuts – weirdly, this describes precisely the cake I made in the semi final!  If someone in Marketing had made it, that would have made it a statistical dead cert to win any heat.  However, individual serving cakes made by a salesperson with fresh fruit and chocolate .. well .. sorry, Stew; I guess the numbers were against you!

The eagle eyed among you will notice that in the departmental section of the graph I’ve sneaked in a line for baker gender.  Very, very interesting to see that not only did no girls make the final, being female actually counts against you generally; nearly a 10% skew towards miserable failure for anyone who actually follows a recipe and cleans up after baking – let that be a lesson to you, girls!

There’s been a lot of smack talk and scandal in Cake Club this inaugural year and it was good to get some real numbers down.  Finding out that blokes really are 8.33% better at baking was just the icing on the cake! Hope you enjoyed seeing some hard facts.  All I can say is, next year you’d better watch out for nut sponges made by men from Marketing.

Oh, and if you can spot all the cake-related puns in this post… you need a hobby.  Baking, perhaps.

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GONG XI FA CAI!!

chinese-new-year-in-singaporeSpring has sprung, and for some of us in the Asia Pacific region, we have just experienced Chinese New Year here in Singapore. For some, it may be the first experience, and for others, you may be veterans of the Singapore customs, but in either case, it is full of festivities.  

The Chinese year follows the lunar calendar, and is called the Lunar New Year, as it starts at the beginning of the Lunar calendar, which is also the spring season. This is the most important festival of the Chinese calendar, and is full of many traditions which are centuries old. It lasts for 15 days.

The tradition starts about a month before, where people will clean their houses to sweep away any ill-fortune, and welcoming good luck and fortune into the home. Decorations are put up, and these are very symbolic, often depicting words such as “happiness”, “wealth” and “longevity” with the colour red being in abundance. People will also buy new clothes and get their hair cut, so everything is fresh and new for the New Year. Red is a prominent colour at this time, as it represents joy, virtue, truth and sincerity.

This is a time for families, where you reconnect with family and friends that you may not have seen for a while, as well as forgetting any issues that may have occurred in the past year. The festival starts with New Years Eve, where families will get together over a feast for dinner. This dinner is full of symbolic meaning. Dumplings imply wealth as they are shaped like ancient gold coins. Jiu (hard liquor) is drunk to symbolise longevity.

imagesCA0NOC31In the morning, children will greet their parents by wishing them a healthy and happy new year, and they will receive money in red packets. These packets, or envelopes symbolise wealth and luck, and are handed out to the younger generation by parents, grandparents, and even neighbours and friends.

The Lion and Dragon Dances are extremely popular. It is believed that the beating of the drums and the face of the lion or dragon will scare away the bad spirits. So if you have been hearing drums around lately, you can be rest assured that the evil spirits are sure to have been scared away.
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Department of Energy and Complete Codswallop

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[Image courtesy of fluffysam]

How’s this for hypocrisy? It turns out that, despite all their preaching about everyone doing their bit to tackle climate change, the Department for Energy and Climate Change have been flying all over the UK on journeys that could quite easily have been done by train.

Apparently, their staff took just under 1,200 domestic flights, including 26 return flights to Manchester. A journey that can be done in two and a half hours by train or a little longer by coach. Surely they could have lift-shared at the very least?

Don’t get me wrong, I congratulate the DECC for the work they’ve done to help prevent climate change – and I’ve been an advocate for much of what they say. I cycle to work and try to leave the car at home if I’m going somewhere in walking distance. And round the house and at work I like to think I do my 20%. Just like I’m told to.

So it really gets on my wick when I hear that a Government department set up to tackle climate change can let their standards slip so remarkably.

What can their excuse for this possibly be? What valid reason could they give for not practising what they preach? Laziness? Expense? Because neither excuse is good enough.

It really devalues all the good work they’ve done on campaigns such as Act On CO2 – a campaign endorsed by this very blog – when figures like this are released. And it makes it hard for those of us who plead with others to try and do their bit. Because why would they when those at the top aren’t seemingly bothered?

Let’s not forget that this story comes in the same week that it was reported that the Government conceded it will not reach its emissions targets for 2010.

It just beggars belief, really. I’m just hoping the DECC are an organisation that learn from their mistakes.

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Climate change in your pocket

iphone_app_top10The Skeptical Science iPhone App

If you’re a climate change believer there’s a chance that you’ve come up some pretty stubborn climate change sceptics, eager to denounce your opinion because they’re sure that climate change is fiction devised by some mad scientists with an agenda.

I wouldn’t be so short-sighted to say that the sceptics are wrong, but wouldn’t it be nice to have a bit of scientific evidence at hand for when you’re not as confident about the science as you would like to be? For example, when you’re in the pub and climate change sceptics who think they’re smarter than the scientists because they’ve read a few blogs or column inches surround you. Well, this is where the Skeptical Science app could help you out.

It basically has a list of every argument opposing climate change (there are 90 of them – so surely every argument?) accompanied by what the science has to say on each issue. Whip that out whenever you’re under fire and you’ll have a whole load of useful climate change information at your fingertips to silence the doubters.

Well, not really. Because, realistically, downloading the app is unlikely to make either side change to the darkside/lightside (depending on your point of view). However, app’s the level of detail makes it a really useful tool for anyone who just wants to learn more about the debate. Plus, it’s free to download so it’s certainly not going to break the bank. It’s available on the iTunes store.

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Spring may have sprung early, but let’s not jump to conclusions

[image courtesy of davidezartz on flickr]

If, like me, you braved the cold, wet and windy weather over the last couple of days, you’ll be forgiven for raising one eyebrow at the latest reports that Spring is here already, 11 days early.

The study found that four out of five animals and plants are breeding earlier because of changes in UK weather patterns.

I’m sure those animals will have a better nose for recognising gradual changes in weather so I won’t argue with them.

The reason I thought this was interesting is because in my blog post earlier this month, I said I hoped that climate change experts would make predictions and conclusions about climate change with significant forethought so that mistakes like those surrounding the melting of the snow on the Himalayan mountains wouldn’t occur again.

So I was really pleased to hear an interview with climate change expert Dr Stephen Thackeray, a biologist at the Centre for Ecology and Hydrology in Lancaster, who had the presence of thought to acknowledge other factors before suggesting that earlier Springs are a result of rising global temperatures.

He said: “There appears to be large-scale patterns in accelerating change across terrestrial ecosystems. This may suggest large-scale drive like climate change is responsible for the changes in the data.

But it’s early days yet to say climate change is responsible for these changes.”

Let’s hope this attitude will continue in the future. If so, we might get fewer stories like this, which suggested that faith in climate change experts has diminished recently because of misleading climate change predictions. Fingers crossed, anyway.

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Powwownow Sponsorship at Twickenham

Powwownow Supports RBS Six Nations

Powwownow, the UK’s fastest growing free conference call provider is supporting the RBS Six Nations.

Powwownow’s outdoor campaign launched at Twickenham on 6th February, a game that saw England beat Wales 30-17. 

The iconic Powwownow boards will next be featured at Murrayfield for the Calcutta Cup on 13th March 2010.

CEO Andy Pearce comments: ‘We are so excited about this campaign. It’s the first major outdoor advertising campaign we have undertaken and we are already receiving positive feedback from our target market.

A prospective customer who was later converted said: ‘This type of advertising is great. It not only sold to me what you do but also gave me assurance that you must be a reputable company to be able to afford to advertise at Twickenham!’

Look out for us at Murryfield…

Powwownow is delighted to be sponsoring the Six Nations games at Twickenham rugby stadium

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Gary Neville, the footballing Captain Planet

Gary Neville's new home[An artist's impression of Gary Neville's new eco-mansion.

Photo: MAKE ARCHITECTS OF LONDON]

This week I’d like to congratulate Gary Neville for again trying to do his bit for the environment by introducing some radical designs for a state-of-the-art zero-carbon house.

Known as an eco-warrior in the footballing world, the former England defender already drives a Toyota Prius hybrid car to training, probably to the amusement of his Manchester United colleagues. And now, after three years’ hard work, he and architect firm Make have submitted their designs for the 8,000 sq ft super eco-home on his Harwood estate.

According to the Telegraph, the new building is so advanced that the Government wants to use the scheme as a benchmark for all future zero-carbon developments. The home will boast the latest in green technology, including sourcing energy from solar panels, wind turbine and a ground-source heat pump. Plus, renewable energy produced by the wind turbine will also power Neville’s neighbourhood property and all excess energy will be supplied back to the national grid.

Although long-term we’re sure this is a positive move, it is worth questioning how much damage will be done just making this revolutionary house. How much carbon will need to be emitted just to transport and operate the diggers, cranes and powerful other machinery, not to mention all the travel to and from the site by the workers?

I guess we’ll never find out the exact figures, but I wonder how many years of zero-carbon living will Gary Neville and his family have to do to make up for all the carbon emissions that it’s taken to build the house in the first place. Let’s hope they like it!

All I think we do know is that it’s highly unlikely that Carlos Tevez will be the first name on the house-warming invitation list.

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Why the big conspiracy?

Himalayan Mountains

[image courtesy of Daniel Bos]

One of the delights of the internet is that no matter how obscure your interests, you’re likely to find somebody out there with the same interests as you. Whether river dancing, Eastern European gangster movies or plate spinning floats your boat, you’ll have no problem finding someone else out there who’s into it, too. It’s just one of the reasons the internet is so great.

Of course it also means that those with more controversial views can find others with the same beliefs. A view that they may have seemed ludicrous to them when it first popped into their heads suddenly gains extra weight once they find other people with views in line with their own, no matter how extraordinary. Their views are reinforced and soon a mass of ‘believers’ form.

And I can’t help feel that this is what has happened with a lot of climate sceptics. After a couple of experts backtracked on predictions made many years ago about the effects of climate change, many have been quick to call conspiracy.

For instance, this month the UN’s Intergovernmental Panel on Climate Change retracted a claim that the Himalayas’ glaciers will all have melted by 2035. While yesterday New Scientist said the IPCC needs to become more open to criticism because “its closed world of peer review is no longer possible, let alone desirable”.

The sceptics now have their ammunition, and now we have a whole faction hell bent on completely dismissing the idea of human-assisted climate change, despite it being a very real possibility, if not a probability.

Now the responsibility lies with the experts to make sure they don’t make the same mistakes again. They’ll no doubt be eager to make sure they get their facts straight before they release what will now always be heavily scrutinised information.

As the Government’s chief-scientific adviser Professor John Beddington said this week, scientists must be more open with their data and he admitted that recent unreliable statements about climate change have been “unfortunate.”

The key, I believe, for both theorists and sceptics alike is to keep an open mind. Nobody can yet be sure about the true effect human behaviour has on climate change and only assessing new scientific evidence both sensibly and methodically will ensure we really find out the truth in the future.

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The snow may be melting away, but the relevance of climate change remains

Frozen flower

[Image courtesy of Marquisa]

The recent ‘big freeze’ that has struck the UK and large parts of the northern hemisphere has pushed global warming right back into the spotlight (if it was ever out of it) and, perhaps unsurprisingly, the climate change sceptics are quick to use it as evidence of the ‘myth’ of global warming. Surely one of the most prolonged cold periods in recent British history surely suggests that the earth is not getting warmer? Well, according to this rather interesting Greenpeace blog, it has no relevance whatsoever. As they point out:

“Winters will always be colder than summer, and the possibility of snow will always be there. What climate change will likely influence is the frequency and severity of extreme weather events: droughts that would have been called “once in a century” might become “once in a decade”, or worse, “once a year”.”

So far no-one has presented that decisive evidence that proves climate change is indeed cause by increased and prolonged carbon emissions by an increasingly industrialised world but, even if you think climate change is a myth, surely there can be no harm in preparing for something that could turn out to be a certainty. Cutting down on your personal emissions isn’t hard and can only do good – for your bank balance, for a start!

A large part of the problem must come with the now dated expression ‘global warming.’ The phrase has needed a ‘re-brand.’ Scientists refer to it as climate change, not global warming, because their beliefs now claim that the damage to the earth’s atmosphere is more likely to result in unpredictable weather conditions, not just a rise in the earth’s temperature.

Many sceptics say that this supposedly freak weather is such a peculiarity that little can be done to prepare for it in the future. But who’s to say that this sort of weather won’t become the norm in the future? As the Telegraph reported this week:

“The floods in the Lake District last year were passed off by the Environment Agency as a ‘once in every 1000 years weather event’. Unfortunately, once in every 1,000 year events will start to occur with alarming frequency now that the effects of climate change are starting to be felt.”

And if so, how long will it be before the sceptics sit up and take notice and try to do something about it?

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Our blog in 2009: the spice of life

We started this blog to do two things:

  1. To get things off our chest, and
  2. To show the world that Powwownow was more than just a great conference calling company.

But now, looking back at our first year’s blogging, I’m amazed at the quantity, the variety, and even sometimes the quality of the material we have put out.

The stats back it up too. The Powwownow main site gets many thousands of visitors every day, fuelled by our investment in good SEO and PPC – but now the blog is a powerful contributor to our total hit count. And we like to think that anyone visiting the blog will have an even better reason to sign up as a registered user, when they realise how much we care about – and enjoy – what we do.

But what do we talk about? It’s difficult to pin down. We have offered small businesses advice on HR. We’ve revealed how to spot authentic Italian food. We have listed our ten least favourite jobs, and our ten favourite start-up companies.

We have wavered from one subject to another, talking about everything from Primrose Hill and Bastille Day to why grown men like to run around London dressed as gorillas.

And then we have focused on our favourite subjects, one of which is the environment. We are unashamedly green here at Powwownow and proud of the way our product helps people to save the planet. So our blog has helped us to talk about some of the issues that matter to us, ranging from a critique of Flybe’s irresponsible advertising (and our cheeky parody of the same) to environmentally-minded employers to the attack of the Harlequin ladybirds that hit the UK in October.

And then we have our other obsession, which is finding ways to make businesses more effective, which led to blogs that covered subjects as diverse as the Jevons Paradox [really!], workspace design and why eating frogs is not as bad as it might seem.

And who could forget Cake Club and Movember?

All in all, a pretty full, varied and exciting year. Many thanks for reading, and we hope to bring you more in the New Year.

Love and festive best wishes from the Powwownow Team.

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