Question

There are rumors that students at a certain liberal arts college are more inclined to use drugs than U.S. college students in general. Suppose that in a simple random sample of 100 students from the college, 19 admitted to marijuana use. The national proportion is known to be 0.157.
What is the appropriate null hypothesis?A. The proportion of students who use drugs at this college is less 0.157B. The proportion of students who use drugs at this college is equal to 0.157C. The proportion of students who use drugs at this college is greater than 0.157D. The proportion of students who use drugs at this college is not related to the proportion of all students who use drugs in the U.S.

Answer 1

Answer:

The right option is option C.

The proportion of students who use drugs at this college is greater than 0.157.

Step-by-step explanation:

The null hypothesis is

H0: The proportion of students who use drugs at this college is greater than 0.157.

Because from the question it was stated that;

There are rumors that students at a certain liberal arts college are more inclined to use drugs than U.S. college students in general.

That word ' more' signifies greater than . Therefore the correct option is C.