Discuss the below:
What is a one tail test? A two tail test?
When are they used?
What is a type I error? A type II error?
In the hypotheses:
Ho: A new auto engine gets the same mpg as an older version
Ha: A new auto engine gets more mpg than an older version
Ho: A new drug for cardio-vascular disease is not safe
Ha: A new drug for cardio-vascular disease is safe
Why is the alternate stated as it is?
What are the "type" errors and their consequences?