Suppose a Population Has a Mean of 870 and a Variance

question 23

Multiple Choice

Suppose a population has a mean of 870 and a variance of 1,600.If a random sample is size 64 is drawn from the population, the probability that the sample mean is between 860 and 875 is ___.

• A)0.9544
• B)0.6826
• C)0.8785
• D)0.5899
• E)0.8185

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Definitions:

Long-Term Goals

Objectives or outcomes that an individual or organization aims to achieve over an extended period, often requiring considerable planning and sustained effort.

Exercise Regularly

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Retrieval Practice

A study method that involves actively recalling information from memory, enhancing and solidifying learning.

Self-Testing

A study method where learners test their own knowledge or skills in order to enhance retention and understanding.