Skip navigation

Test Yourself

True or False

Question 1

You should give a 95% confidence interval for an estimate wherever possible because it tells you something about the 'true' value that you are trying to estimate.

Question 2

It is possible to compute a CI for a sample proportion if you do not know the sample size.

Question 3

I’ve measured levels of carbon monoxide in 100 children from 40 families whose parents smoke and wish to calculate a 95% CI using the normal approximation. Is this reasonable, true or false?