A Random Sample of 31 Charge Sales Showed a Sample

question 13

Multiple Choice

A random sample of 31 charge sales showed a sample standard deviation of $50. A 90% confidence interval estimate of the population standard deviation is

• A)1,715.10 to 4,055.68
• B)1,596.45 to 4,466.73
• C)39.96 to 66.83
• D)41.39 to 63.68

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Definitions:

Individual Achievement

Personal success or accomplishment attained through one's own skills, effort, or qualities, often in educational or professional contexts.

American Indian

Members or descendants of indigenous peoples of the territories that are now the United States, recognized as sovereign nations within the country.

Alaskan Native

Indigenous peoples from Alaska including various Eskimo (Inuit and Yupik), Aleut, and Native American tribes.

Grandparents

The parents of one's parents, serving as a source of wisdom, tradition, and family heritage.