Nigel Marriott's Blog

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

You are here: Home / Archives for Presenting data

Pay Gaps #18 – 10 quick and easy ways to close your gender pay gap!

By

You’ve just calculated your latest gender pay gap.  With a sigh, you note that it is still large and at current rate of progress, it will take you 30 years to close it.  Surely there must be a quicker and easier way to eliminate your pay gap?  The good news is that if you use the 10 tools of Creative Pay Gapping, you can eliminate your pay gap tomorrow!

[Read more…] about Pay Gaps #18 – 10 quick and easy ways to close your gender pay gap!

Data Driven Decision Making #1 – New Statistical Guidance for Land Contamination Surveys

By

On 30th September 2020, CL:AIRE (the industry body for the land contamination & remediation sector) published new professional guidance for “Comparing Soil Contamination Data with a Critical Concentration“.  The 46-page document advises how to use statistics when assessing land contamination and deciding whether it is safe for development.  I was the lead author of the guidance and I spent 4 years working with CL:AIRE’s steering committee on what the guidance should cover.  The 4 years were bookended by statement & editorial published by the ASA (American Statistical Association) on the use & misuse of P-Values in 2016 & 2019 respectively and in writing this guidance I felt was I an ambassador for turning those into something that could used by non-statisticians to make real life decisions that have an impact on us all.

[Read more…] about Data Driven Decision Making #1 – New Statistical Guidance for Land Contamination Surveys

COVID19 Cases #1 – Latest Data and Trends for England

By

Last updated on 27th September 2020 but downloadable spreadsheet in section 3a was updated on 19th October 2020.  I will update the post when I get the time!

The latest data for COVID19 (Coronavirus) cases in England as of Saturday 26th September 2020 shows the number of people testing positive for COVID19 is up 60% from a week ago but this masks extreme regional disparities that make the national trend meaningless.  The North is in the grip of a second wave unlike the South which is not.  Unless recent trends in the North abate, the scenario of 50k positive tests per day by the end of October recently postulated by the Chief Scientific Officer remains feasible.

[Read more…] about COVID19 Cases #1 – Latest Data and Trends for England

Pay Gaps #16 – Eliminate your gender pay gap by playing Blackjack!

By

Imagine where you work, the median women earns 33% less than the median man.  Although your workplace is gender balanced with 50:50 men:women, the pay gap exists because 1 in 4 of managers and 3 in 4 of the lowest paid admin staff are women.  How long will it take for the pay gap to disappear assuming that all future recruitment at all levels have 50:50 candidate pools with men and women equally likely to be appointed to the role?

Up to 25 years i.e. a generation

[Read more…] about Pay Gaps #16 – Eliminate your gender pay gap by playing Blackjack!