Nancy, Inc

question 29

Essay

Nancy, Inc. has three stores located in three different areas. Random samples of the sales of the three stores (In $1,000) are shown below.
a.Compute the overall mean .
b.At 95% confidence, test to see if there is a significant difference in the average sales of the three stores.

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Definitions:

Personality Characteristics

Traits that define an individual’s patterns of thought, feeling, and behavior that are consistent over time and across situations.

Fetal Alcohol Syndrome

A cluster of problems in a child, including low birth weight, irregularities in the hands and face, and intellectual deficits, caused by excessive alcohol intake by the mother during pregnancy.

Dyslexia

A learning disorder marked by difficulty in reading, due to problems identifying speech sounds and learning how they relate to letters and words.

Comprehending Language

The ability to understand and interpret spoken or written language.