The Table Below Shows the Age and Favorite Type of Music

question 4

Essay

The table below shows the age and favorite type of music of 668 randomly selected people. $$\begin{array} { l | r r r } & \text { Rock } & \text { Pop } & \text { Classical } \\\hline 15 - 25 & 50 & 85 & 73 \\25 - 35 & 68 & 91 & 60 \\35 - 45 & 90 & 74 & 77\end{array}$$ Use a 5 percent level of significance to test the null hypothesis that age and preferred music type are
independent.

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Definitions:

Carboxylic Acid

Organic molecules that feature a carboxyl group (-COOH) are known for their acidic characteristics and are commonly found throughout the natural world.

Aldehyde

Organic compounds characterized by a carbon atom bonded to a hydrogen atom and double-bonded to an oxygen atom at the end of a carbon chain.

DIBAL

Diisobutylaluminum hydride, a reducing agent commonly used in organic synthesis to reduce esters, aldehydes, and ketones to alcohols.

Acid Chlorides

Reactive derivatives of carboxylic acids where the hydroxyl group has been replaced by a chloride ion, with general formula RCOCl.