Question

A manufacturer claims that the mean amount of juice in its 16 ounce bottles is 16.1 ounces. A consumer advocacy group wants to perform a hypothesis test to determine whether the mean amount is actually less than this. Classify the hypothesis test as two-tailed, left-tailed, or right-tailed.

a. Two-tailed
b. Left-tailed
c. Right-tailed

Answer 1

Answer: option B

Step-by-step explanation: the null hypothesis is that

H0: u = 16.1

The consumer advocacy group wants to perform a test to determine whether the mean amount is actually lesser than what was mentioned earlier.

This simply implies that the alternative hypothesis is

H1: u <16.1, which is a left tailed test.