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The data for two variables,ear preference and handedness for using the cell phone is provided.

Assume that all the requirements for conducting the test for independence are satisfied.

Refer to exercise 1 for the data as,

The hypotheses always appears in pair of two; null and alternative.

A null hypothesis is the base hypothesis which is expressed for a no change assumption while the alternative hypothesis describes the change.

Thus, a null hypothesis is always expressed with an equal to sign, if expressed mathematically.

The claim requires to test for independence of two variables; handedness and ear preference.

Thus, the hypotheses are formulated as follows:

\({\rm{Null}}\left( {{H_0}} \right):\)Thehandedness and cell phone ear preference are independent of each other.

\({\rm{Alternative}}\left( {{H_1}} \right):\) The handedness and cell phone ear preference are dependent on each other.