An Automotive Repair Shop Has Determined That the Average Service

question 37

Short Answer

An automotive repair shop has determined that the average service time on an automobile is 2 hours with a standard deviation of 32 minutes. A random sample of 64 services is selected.
a.What is the probability that the sample of 64 will have a mean service time greater than 114 minutes?
b.Assume the population consists of 400 services. Determine the standard error of the mean.

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Definitions:

Plasma Membranes

A pair of lipid layers that forms a barrier around the cell's cytoplasm, controlling the import and export of cellular materials.

Adhesion Belt

A protein complex located just below the tight junctions in epithelial cells, contributing to the formation of an adhesive junction that holds cells together.

Apocrine

A type of gland that secretes substances (such as sweat) by shedding part of the cell, found in various parts of the body including armpits and groin.

Holocrine

A mode of secretion in which the entire cell disintegrates to release its substances, often seen in sebaceous glands.