Answer to Question #303937 in Statistics and Probability for Masha

Question

a)  A movie producer is bringing out a new movie. In order to map out his advertising campaign, he wants to determine whether the movie will appeal most to a particular age group or whether it will appeal equally to all age groups. The producer takes a random sample from persons attending preview and obtains the following results:

 

Age groups

                            Under 20              20-39                    40-49          60 and over     

 

Liked the movie         146           78                     48            28                            

Disliked the movie     54            22                     42            22         

 

Indifferent                20            10                     10            20                          

By carrying out a chi-square test of significance, what inference will you draw from this data? Use 5% level of significance.