Question

Consider the survey question shown below.

One hundred people answer the question after seeing Commercial A and a different 100 people answer this question after seeing Commercial B. The mean response on this measure for both commercials is 2.3. The standard deviation for Commercial A is 1.1 and the standard deviation for Commercial B is 1.9.
This means that dispersal of scores for Commercial B is larger than the dispersal of scores for Commercial A.

Answer

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