YouTube Would Like to Test the Hypothesis That the Average

question 104

Multiple Choice

YouTube would like to test the hypothesis that the average length of an online video watched by a user is more than 8 minutes. A random sample of 37 people watched online videos that averaged 8.7 minutes in length. It is believed that the population standard deviation for the length of online videos is 2.5 minutes. YouTube would like to set α = 0.02. The critical value for this hypothesis test would be _________.

• A)1.645
• B)1.96
• C)1.28
• D)2.05

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Definitions:

Anorexia Nervosa

A psychological and potentially life-threatening eating disorder characterized by an extremely low body weight, a devastating fear of weight gain, and a distorted perception of body image.

Binge-eating Disorder

A psychiatric condition characterized by recurring episodes of eating large amounts of food, often quickly and to the point of discomfort, accompanied by a feeling of loss of control during the binge.

Bulimia Nervosa

An eating disorder characterized by episodes of binge eating followed by compensatory behaviors, such as self-induced vomiting, aimed at preventing weight gain.

Body Weight

The total mass or weight of a person's body, comprising muscles, fat, bones, and other components.