Question: Squared differences between observed and expected frequencies are used in chi-square tests because variances always use squared quantities. differences between observed and expected frequencies sum

Squared differences between observed and expected frequencies are used in chi-square tests because variances always use squared quantities. differences between observed and expected frequencies sum to zero. the squaring operation weights each cell appropriately. nominal data categories require it

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=+c) Find the expected counts for each cell, and explain why the chi-square procedures are not appropriate for this table.

=+b) Write appropriate hypotheses.