$5.$ A study was conducted to compare the effects of ad types $($corporate social responsibility

$($CSR$)$ and sex appeal $($SA$))$ on people$$s attitude toward the firm. There were $4$ conditions, with

$100$ people being assigned at random to each condition $($there were a total of $400$ people in the

study$).$ The $4$ conditions were:

$1$: CSR ad only $2$: CSR ad $+$ SA$1$ ad $3$: CSR ad $+$ SA$2$ ad $4$: CSR ad $+$ SA$3$ ad