Lesson 11
How Sure Should You Be?
Start an estimate from how long jobs like yours usually take, match your confidence to your record, and see what the Dunning–Kruger studies really found.
Predict
Your kitchen fitter says the job will take three weeks. Five kitchens fitted on your street in the last few years took 5, 5, 6, 7 and 9 weeks.
Where should your own estimate start?
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Choose a prediction, then select Next to see the answer.