For parts a, b and c, determine the null and alternative hypotheses. A manufactu

Question

For parts a, b and c, determine the null and alternative hypotheses. A manufacture claims that the mean amount of juice in its 16 oz. bottle is 16.1 ounces. A consumer group wants to perform a hypothesis test to determine whether the mean amount is actually less than this. A health insurer has determined that the "reasonable and customary" fee for a medical procedure is $1200. They suspect the average free charge by one clinic for this procedure is higher than $1200. Their hypothesis should be: In 2001, the average duration of long-distance telephone calls from one town was 7.2 minutes. The telephone company wants to perform a hypothesis test to determine whether the average phone call has changed from the 2001 mean of 7.2 minutes.

Explanation / Answer

a) H0:mu=16.1 ounces

H1:mu<16.1 ounces

b) H0:mu=$1200

H1:mu>$1200

c) H0:mu=7.2 minutes

H1:mu not equal to 7.2 minutes

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