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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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Coronavirus #2 – What sample size does Boris need to lift all restrictions?

April 2, 2020 By Nigel

April Fools day 2020 saw the hive mind of social media asking what the sample size should be to measure the extent of the Coronavirus in the UK.  I could see that many people responding were reaching for standard methodologies which are usually are based on specifying a desired confidence interval.  In doing so, they were overlooking a much more effective and relevant alternative based on the methodology of Acceptance Sampling, first developed by the US Military in World War 2.

[Read more…] about Coronavirus #2 – What sample size does Boris need to lift all restrictions?

Filed Under: Misc, Polling Tagged With: Acceptance Sampling, Bayes rule, Binomial Distribution, Coronavirus, Covid19, Probability, Sample size, Statistical Training

Ethnicity #1 – Is all white alright?

July 18, 2019 By Nigel

You have just started work for a new employer and with you joining, the company now has 25 employees.  All are white including you.  Would you raise your eyebrows at that?

[Read more…] about Ethnicity #1 – Is all white alright?

Filed Under: Diversity Tagged With: Bayes rule, Binomial Distribution, Discrimination, Ethnicity, Probability, Workplace diversity

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UK Weather Tracker #105 – October 2025

Like last month, the weather in the UK in October was unremarkable.  I must confess I found myself … [Read More...] about UK Weather Tracker #105 – October 2025

Pay Gap Data #8 – Where can I find gender pay gap data for 2024?

This post was updated on 6th October 2025.  The next update is planned for early January … [Read More...] about Pay Gap Data #8 – Where can I find gender pay gap data for 2024?

Trophy Winners #3 – Rugby Union (Men) 1984 to 2025

South Africa have won back to back Rugby Championships for the first time ever.  That marks the last … [Read More...] about Trophy Winners #3 – Rugby Union (Men) 1984 to 2025

UK Weather Tracker #104 – September 2025

After the hottest summer on record, the weather in the UK in September was unremarkable.  However, … [Read More...] about UK Weather Tracker #104 – September 2025

Stats Training Materials – Pay Gap Analytics

*** Updated with links P9, P10 and P11 for 3 presentations I have given recently on gender & … [Read More...] about Stats Training Materials – Pay Gap Analytics

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