Without presenting any actual statistics, BBC Scotland staff groomed staff in Edinburgh to tell us, out of context, how bad things are.
Straight comparisons are slightly problematic but still possible.
In March 2022 (the latest) NHS England ambulances for Category 1 cases had a mean response time of 9 minutes and 35 seconds while for NHS Scotland the equivalent category (purple), the median was 7 minutes and 4 seconds.
Why use median instead of mean? It’s best to use the mean when the distribution of the data values is symmetrical and there are no clear outliers. It’s best to use the median when the the distribution of data values is skewed or when there are clear outliers.https://www.statology.org/when-to-use-mean-vs-median/
I’m guessing, based on some media reporting, that there will be clear outliers with some ambulance services taking far longer so the median is more informative.
90% of the English cases had a response time of 16 minutes of 50 secs while 90% of the Scottish cases had a response time of 16 minutes and 20 seconds.