(ii) The family error rate is the probability of obtaining a significant result for at least one of the


-tests conducted, under the assumption that the null hypothesis is true. Use the tree diagram to determine the family error rate for two


-tests, each conducted at a level of
=0.05


Question 3
(c) Determine the family error rate for the number of


-tests identified in part (a), each conducted at a level of
=0.05