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:

Earn Less

To receive a lower income or wage compared to others, often highlighting economic disparities.

Male Employees

Refers to workers or staff members who identify as male within a workplace, often discussed in the context of gender dynamics and equality in employment.

Job Training Programs

Initiatives designed to enhance the skills and employability of individuals, preparing them for specific occupations or industries.

Racial Gap

Disparities and inequalities between racial groups in various areas such as education, employment, health, and wealth.