The family error rate is the probability of obtaining a significant result for at least one of the t tests conducted, under the assumption that the null hypothesis is true. Use the tree diagram to determine the family error rate for two t tests, each conducted at a level of a=0.05. Show your work 2)determine the family error rate for the number of t tests identified in part a (it was 3 tests), each conducted at a level of a=0.05. Show your work.
3)the manager wants the family error rate to be close to 0.05. Suggest a single significance level a that could be used for all of the individual t tests that will bring the family error rate close to 0.05. Show your work to support your suggested level.