A radio station broadcasts ads for a local car dealer. The car dealer is concern

Question

A radio station broadcasts ads for a local car dealer. The car dealer is concerned that its ads are not reaching enough customers. The station claims that car dealer's ads reach at least 20 percent of the relevant audience of potential customers, which is what the contract calls for. The radio station proposes that an independent third party conduct a random survey of the audience to find out if the station's claim is true.Of the 625 potential audience members who took this random survey, 100 had heard the advertising of the company. Let p be the proportion of the potential radio audience that has heard the advertising. The best null and alternative hypotheses for this question are Select one: 100 a. Ho: p-0.16 Ha: p#0.16 (016-625) O c. H p20.20 Ha P0.20 d. Ho D20.16 Ha Eo.16 e. Ho p0.20 Ha ps0.20

Explanation / Answer

Null Hypothesis is one which needs to be proved.

Hence, H0 : p>= 0.2

Alternative Hypothesis is one which is accepted if null hypothesis is rejected.

Hence, Ha : p<0.2

So, Option C

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