Example: Is a market share result of 39 per cent for Brand A significantly higher than one of 32 per cent for Brand B based on the same sample of 1,000 people?
Answer: Yes it is – at the 95 per cent confidence level the difference needed is 5.2 per cent - the observed difference is 7.0 per cent.
If you would like to run this test on your own data please use the calculator below.
