The Amount of Time Required for an Oil and Filter

question 86

Short Answer

The amount of time required for an oil and filter change on an automobile is normally distributed with a mean of 45 minutes and a standard deviation of 10 minutes.A random sample of 16 cars is selected.What is the standard error of the mean?

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Definitions:

Hydrogen Sulfide

A colorless, poisonous, flammable gas with the characteristic foul odor of rotten eggs; used in the manufacture of chemicals, in metallurgy, and as a fungicide and insecticide.

Lewis Structure

A graphical representation of molecules showing how valence electrons are distributed among atoms, and where dots and lines represent electrons and bonds, respectively.

Water

A molecule composed of two hydrogen atoms bonded to one oxygen atom, essential for all forms of life.

Helium

The second lightest and second most abundant element in the universe, a noble gas that remains liquid at the lowest temperatures.