YouTube Would Like to Test the Hypothesis That the Standard

question 21

Multiple Choice

YouTube would like to test the hypothesis that the standard deviation for the length of an online video watched by a user is more than 2 minutes. A random sample of 21 people who watched online videos was selected. The sample standard deviation for the length of the video was found to be 2.5 minutes. The test statistic for this hypothesis test would be _____.

• A)22.60
• B)31.25
• C)10.19
• D)4.66

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Definitions:

Family Development Perspective

A theoretical perspective that examines the changes and adjustments families go through over time.

Teen Suicide

The act of a young person, typically under the age of 20, intentionally taking their own life.

Online Surveys

Data collection tools or questionnaires that are hosted on the internet, allowing for easy and efficient gathering of information from a wide audience.

Limitations

Restrictions or boundaries that limit what is possible or allowable.