A researcher claims that the amounts of acetaminophen in a certain brand of cold tablets have a standard deviation different from the = 3.3 mg...

A researcher claims that the amounts of acetaminophen in a certain brand of cold tablets have a 

standard deviation different from the σ = 3.3 mg claimed by the manufacturer.

Assuming that a hypothesis test is conducted to test this claim, identify the 

null hypothesis H0 and the alternative hypothesis Ha.