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Nigel Marriott's Blog

An independent statistician using data to understand our world and to predict the future

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Stats in the News #3 – Did I change Bath’s Clean Air Zone plans?

July 15, 2019 By Nigel Marriott

The city of Bath is among a number of cities in the UK tasked with reducing Nitrogen Oxide (NOx) emissions.  NOx pollution is thought to contribute to poor health and the government has required clean air plans from the relevant local authorities to be in place before 2021.  I had no idea that this would result in my statistical expertise being needed to answer a political row over the BathBreathes2021 plans to charge cars driving into Bath and you can read my report to see what my answer was!

[Read more…] about Stats in the News #3 – Did I change Bath’s Clean Air Zone plans?

Filed Under: Forecasting, Misc Tagged With: BathBreathe2021, Evidence, Expert Witness, Forecasting model, Pollution, Spatial Statistics

Pay Gaps #9 – How to close your gender pay gap with DMAIC

July 5, 2019 By Nigel Marriott

So you’ve measured your gender pay gap (correctly I hope!) but you don’t know what to do next?

You are not alone, many employers are still getting their heads around how to interpret their pay gaps and are struggling to work out what it means for them.  One outcome is that many consultants are out there waiting to advise you and among them are statisticians like me.  But what exactly is it that statisticians bring to the party compared to other consultants?  One answer is that statisticians use DMAIC to help organisations improve the quality of their products, services and processes.

[Read more…] about Pay Gaps #9 – How to close your gender pay gap with DMAIC

Filed Under: Diversity Tagged With: DMAIC, Gender Pay Gap, QIS, Quality Improvement, Royal Statistical Society, Six Sigma, Statistician

UK Weather Tracker #29 – June 2019

July 4, 2019 By Nigel Marriott

The Met Office began the month with forecasts of a really cold June and ended the month talking about heatwaves.  This meant June ended up being unremarkable on average.

[Read more…] about UK Weather Tracker #29 – June 2019

Filed Under: Archive Tagged With: Presenting data, Weather, Weather Tracker

Pay Gaps #8 – My Evidence to the Treasury Select Committee

June 8, 2019 By Nigel Marriott

On June 5th 2019, I had the privilege of being able to talk to the Treasury Select Committee about the “Effectiveness of Gender Pay Gap Reporting“.  My name was put forward by the Royal Statistical Society and we spent an hour discussing a number of issues with a particular focus on the Finance sector.

[Read more…] about Pay Gaps #8 – My Evidence to the Treasury Select Committee

Filed Under: Diversity, Featured blog Tagged With: Evidence, Gender Pay Gap, Parliament, Statistical Training

UK Weather Trends #9 – Spring 2019

June 6, 2019 By Nigel Marriott

The 2019 spring was consistent with the step change in the autumnal climate that took place in the 1990s but was unremarkable otherwise

[Read more…] about UK Weather Trends #9 – Spring 2019

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

UK Weather Tracker #28 – May 2019

June 6, 2019 By Nigel Marriott

May 2019 set a new record though you might not have known as the month seemed unremarkable.  In fact it was the most “average” May on record across all weather variables!

[Read more…] about UK Weather Tracker #28 – May 2019

Filed Under: Archive Tagged With: Presenting data, Weather, Weather Tracker

EU Election 2019 #1 – How many MEPs will each party win?

May 21, 2019 By Nigel Marriott

Here is my forecast for the election that was not supposed to be happening in the UK.  The Brexit Party is well on course to be the largest party and could even set the record for the best ever vote share by a party in the d’Hondt era of EU elections in the UK.  At the same time, the Liberal Democrats have the possibility of beating both the Conservatives and Labour parties in a UK-wide election for the first time since 1906.

[Read more…] about EU Election 2019 #1 – How many MEPs will each party win?

Filed Under: Elections, Forecasting Tagged With: Election forecasting, EU Election 2019, EU Referendum, Forecasting model, Politics

UK Economy Tracker #4 – 2019 Q1

May 15, 2019 By Nigel Marriott

It’s taken 10 years but the UK is finally experiencing true wage growth that outpaces inflation.  With employment and economic activity at record levels, the UK economy should be in good shape but the basic problem of low growth is still there.  Our economy still needs to place itself on a stronger footing ahead of a rising probability of another recession in the near future.

[Read more…] about UK Economy Tracker #4 – 2019 Q1

Filed Under: Archive Tagged With: Economy Tracker, Presenting data, Trackers, UK Economy

UK Weather Tracker #27 – April 2019

May 5, 2019 By Nigel Marriott

April 2019 is the first uninteresting month of the 2019 meteorological year in the UK.  Everybody got excited about the warmest Easter on record but the rest of the month couldn’t be bothered and so dragged the monthly averages down.

[Read more…] about UK Weather Tracker #27 – April 2019

Filed Under: Archive Tagged With: Presenting data, Weather, Weather Tracker

Pay Gap Case Study #2 – Year on year trends, the good, bad and Unilever

April 24, 2019 By Nigel Marriott

Welcome to my next case study where I look at the pay gap figures of Unilever Ltd.  Unilever turn out to be a very interesting case study for analysing year on year changes in their published statistics.  In this case I will be looking at the changes between 2017 and 2018 for the two Unilever business units that have submitted GPG data which are:-

  1. Unilever UK Ltd
  2. Unilever UK Central Resources Ltd

Clicking on those links will take you to the government’s gender pay gap website where you can see their published figures.  For this post, I will be using my own spreadsheet which you can download for yourselves here.

 

[Read more…] about Pay Gap Case Study #2 – Year on year trends, the good, bad and Unilever

Filed Under: Diversity Tagged With: detecting unusual data, Gender Pay Gap, Presenting data, trend analysis

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