Movie Ratings Narrative A Movie Critic Wanted to Determine Whether or Not Moviegoers

question 76

Essay

Movie Ratings Narrative
A movie critic wanted to determine whether or not moviegoers of different age groups evaluated a movie differently. With this objective, he commissioned a survey that asked people their ratings of the most recently watched movies. The rating categories were 1 = terrible, 2 = fair, 3 = good, and 4 = excellent. Each respondent was also asked to categorize his or her age as either 1 = teenager, 2 = young adult (20-34), 3 = middle age (35-50), and 4 = senior (over 50).
The results are shown below.
-Refer to Movie Ratings Narrative. Do these data provide sufficient evidence to infer at the 5% significance level that there were differences in ratings among the different age categories? Justify your response.

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Definitions:

Placebo

A substance or treatment that has no active therapeutic effect, used in clinical trials for comparison.

Fracture

The breaking of a bone, typically as a result of an accident, injury, or excessive force.

Placebo Effect

A beneficial effect, produced by a placebo drug or treatment, that cannot be attributed to the properties of the placebo itself, and must instead be due to the patient's belief in that treatment.

Surgery

A branch of medicine that involves the treatment of diseases, injuries, and deformities by manual and instrumental techniques.