In Evaluating the Following Generalization(s),identify Sample,population,attribute of Interest,and the Extent

Short Answer

In evaluating the following generalization(s),identify sample,population,attribute of interest,and the extent to which the claims involved are knowable.Consider carefully the size and diversification of the sample and the extent to which the population differs or may differ from the sample;remember,what's important is that the sample be representative.
Readers of Consumer Reports can write in their opinions of movies they have seen.Each month,CR reports the total number of opinion votes it receives in this way.In one issue,the average rating of a certain movie is 4 on a scale of 1 to 5,with 5 the bad end of the scale.The total vote on the movie is 107.How sound would a generalization from this sample to American moviegoers in general be?