A Random Sample of 100,000 Credit Sales in a Department

question 21

Multiple Choice

A random sample of 100,000 credit sales in a department store showed an average sale of $87.25. From past data, it is known that the standard deviation of the population is $20.00. Determine the standard error of the mean.

• A) .0632
• B) .0002
• C) 20.00
• D) .0141

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Definitions:

Fibroblast

Fibroblasts are the most common cells of connective tissue in animals, which produce and maintain the extracellular matrix, playing a crucial role in wound healing and tissue repair.

Liver Cells

Also known as hepatocytes, they are the main cells of the liver and play a vital role in metabolism, detoxification, and protein synthesis.

Endoplasmic Reticulum

A network of membranes within the cell, involved in protein and lipid synthesis.

Ribosomes

Cellular organelles responsible for protein synthesis, found in the cytoplasm and on the endoplasmic reticulum.