Lifting the Margin of Error Safety Blanket
The trend is still your friend > “All changes are within the margin of errorâ€. It’s a frequently heard line, usually trotted out by those sympathetic to a party whose share has just declined, or by those keen to fence-sit. While it may be true (and it usually is: only six of the 600 or so poll-to-poll changes across the four parties in this year’s YouGov series have been more than 3%, for example, and then only by a single…