Question
an automobile manufacturer claims that their tires last more than 70,000 miles before replacement? Whats the null and alternative hypothesis
Answers
PsyDAG
Ho: x ≥ 70,000
Ha: x < 70,000
Ha: x < 70,000
PsyDAG
Ho: x > 70,000
Ha: x ≤ 70,000
Ha: x ≤ 70,000