A University Has 1,000 Computers Available for Students to Use

question 80

Essay

A university has 1,000 computers available for students to use. Each computer has a 250-gigabyte hard drive. The university wants to estimate the space occupied on the hard drives. A random sample of 100 computers showed a mean of 115 gigabytes used with a standard deviation of 20 gigabytes. What is the probability that a sample mean is between 111 and 119 gigabytes?

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Definitions:

Psychological Information

Data related to the mental processes, behaviors, and emotional state of an individual.

Causal Conclusions

Judgments about the existence or strength of a cause-and-effect relationship between two variables.

Correlational Studies

Research methodologies that examine the relationship between two or more variables without manipulating them, to determine if a relationship exists.

Confidentiality

Confidentiality refers to the ethical principle of keeping information shared by or about an individual in a professional setting secure and private.