Question:

A campaign manager for a political candidate released a series of advertisements criticizing the opposing candidate in an upcoming election. The opposing candidate previously had the support of 45% percent of voters, so the manager wants to see if the campaign was effective in decreasing the support for the opposing candidate. After running the advertisements, the campaign manager obtained a random sample of 500 voters and found that 200 of those sampled supported the opposing candidate. Using a one percent significance level and the calculated p_va|ue of ____________ , you _________ (reject/ not reject) the null hypothesis and conclude that the campaign was _________________ (effective/ not effective). 0 a) 0.0123, not reject, not effective O b) 0.0123, reject, effective 0 c) 0.0123, not reject, effective Q d) 0.0123, reject, not effective