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:

Moral Reasoning

The process of determining right or wrong in a given situation based on ethical principles and moral values.

Kohlberg's Principles

A theory of moral development proposed by Lawrence Kohlberg, describing how individuals evolve their understanding of morality through different stages.

Universal

Pertaining to or affecting all members of a class or category without exception; applicable everywhere or in all cases.

Instrumental Purpose

The use of rational calculation to achieve individual goals, often highlighted in moral development or decision-making scenarios.