1. For each statement below: (5 points each)
   1. Write a hypothesis pair using correct notation.
   2. Label which hypothesis is the claim.
   3. State or sketch that shows the direction of the test as left-tail, right-tail, or two-tail.

a.) Statistics instructor claims that the majority of students who study on average more than 10 hours per week are likely to complete the course with B.

b.) Recently, the mean weight of newborn boys in a certain country was 6.2 pounds. A

doctor wants to know whether the mean weight of newborn girls differs from this.

c.) A certain model of car can be ordered with either a large or small engine. The mean number of

miles per gallon for cars with a small engine is 24.1. An automotive engineer thinks that the mean for cars with larger engines will be less than this.