A Simple Random Sample of the Running Time of Movies

question 27

Essay

A simple random sample of the running time of movies of 70 international movies resulted in a sample mean length of 112 minutes and a sample standard deviation of 7 minutes. Test the claim that international movies have a mean running time of more than 110 minutes at the 5% level of significance. Assume that the lengths of movies are normally distributed.

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Definitions:

Formal Patterns

Structured and organized repetitive motifs or behaviors that follow a specific order or arrangement within a particular context.

Informal Patterns

Refers to non-official, often unstructured ways of behavior or activity that emerge naturally among groups of people.

Communication

The exchange of information, thoughts, messages, or emotions between individuals or groups through various modes and channels.

Organizational Context

The set of conditions or circumstances that surround and influence the operations of a group or organization.