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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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UK Weather Tracker #74 – March 2023

April 3, 2023 By Nigel Marriott

As we move from February to March, it normally gets warmer and brighter in the UK.  Unusually, March 2023 was colder than February, it didn’t brighten and it was wetter than normal.  However the abnormality index says this is just typical British weather!
[Read more…] about UK Weather Tracker #74 – March 2023

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

6 Nations History #3 – The men’s story so far in 2023

March 24, 2023 By Nigel Marriott

The 2023 Six Nations (Men’s) ended with Ireland beating England to win their 3rd 6 Nations Grand Slam in the last 15 years.  France ran them close and Scotland recorded their 1st top 3 placing since 2018.  England & Wales disappointed their fans whilst Italy have some grounds for optimism despite their wooden spoon.

[Read more…] about 6 Nations History #3 – The men’s story so far in 2023

Filed Under: Sport Tagged With: 6 Nations, Data journalism, England, France, Ireland, Italy, Rugby, Scotland, Sport Analytics, Trackers, Wales

Pay Gap Case Study #7 – Does the Department for Work & Pensions have a Gender Pay Gap?

March 5, 2023 By Nigel Marriott

The Department for Work & Pensions (DWP) says for every £1 paid to the median man in March 2022, the median woman was also paid £1.  In other words, their 2022 median gender pay gap using hourly pay was 0%.  However, their Gender Swap Number per 1,000 employees for this date was +26 which immediately raises the question “Have the DWP made an error in their calculations like Cleveland Police did in 2017?”  This was my first reaction which seems remarkable for an employer with 91,006 full pay relevant employees on a public sector pay scale and the largest pool of statisticians of any government department.

[Read more…] about Pay Gap Case Study #7 – Does the Department for Work & Pensions have a Gender Pay Gap?

Filed Under: Diversity Tagged With: Checking for errors, Creative Pay Gapping, DWP, Gender Pay Gap, Median, Narrative, Representation Gap, Swap Number

UK Weather Trends #25 – Winter 2023

March 2, 2023 By Nigel Marriott

Winter 2023 was the 10th sunniest on record but I doubt we may have noticed.  There are indications now that our winters are entering a new era of being warm, wet & sunny.

[Read more…] about UK Weather Trends #25 – Winter 2023

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

UK Weather Tracker #73 – February 2023

March 1, 2023 By Nigel Marriott

It was the 7th warmest February on record in the UK whilst being dry and sunny.
[Read more…] about UK Weather Tracker #73 – February 2023

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

Pay Gaps #28 – Does the NHS Harm Gender Equality?

February 17, 2023 By Nigel Marriott

“We’re committed to Gender Equality!”

As we approach International Women’s Day next month, expect to see more and more employers saying something like this in their PR.  It’s an easy statement to make but what does Gender Equality mean to them and you?  To encourage employers to be clearer on what this means for them, I want to explore 6 possible definitions.  Along the way, I show some definitions of gender equality in the UK are out of reach unless half a million women working for the NHS (National Health Service) are replaced by men.

[Read more…] about Pay Gaps #28 – Does the NHS Harm Gender Equality?

Filed Under: Diversity Tagged With: Disparity, Employment Gap, gender dominance, gender equality, Gender Parity, Gender Pay Gap, Pay Gaps, Representation Gap, Swap Number

UK Weather Tracker #72 – January 2023

February 4, 2023 By Nigel Marriott

Did you know it was the 3rd sunniest January on record in the UK?  Neither did I but it was the only highlight of a thoroughly unremarkable month.
[Read more…] about UK Weather Tracker #72 – January 2023

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

UK Weather Trends #24 – Annual Temperatures in 2022

January 3, 2023 By Nigel Marriott

The 2022 calendar year was the hottest year on record in the UK beating the previous high recorded in 2014.  Does that mean that the UK is starting a new warming phase?  Using a technique known as a Control Chart, I show the answer is “Not Yet“.

[Read more…] about UK Weather Trends #24 – Annual Temperatures in 2022

Filed Under: Weather Tagged With: SPC, Statistical Process Control, t-test, temperature, trend analysis, Weather, weather trends

UK Weather Tracker #71 – December 2022

January 3, 2023 By Nigel Marriott

After an entire meteorological year where the temperature above the median for ever single month, the new meteorological year of 2023 started with temperatures below the median.  We even had some snow here in Bath!
[Read more…] about UK Weather Tracker #71 – December 2022

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

UK Weather Trends #23 – Autumn 2022

December 4, 2022 By Nigel Marriott

The UK autumn in 2022 was the 3rd warmest on record and consistent with the step change in autumnal climate seen 25 years ago.

[Read more…] about UK Weather Trends #23 – Autumn 2022

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

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