A Survey of 100 Businesses Revealed That the Mean After-Tax

question 49

Essay

A survey of 100 businesses revealed that the mean after-tax profit was $80,000.Assume the population standard deviation is $15,000:
a.Determine the 95% confidence interval estimate of the mean after-tax profit for all businesses.
b.Explain why you can use the confidence interval formula here,even though the population is not necessarily normal.

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Definitions:

Achiral Molecule

A molecule that is superimposable on its mirror image, lacking chirality or a distinct handedness.

Optical Activity

The ability of a substance to rotate the plane of polarization of polarized light, a property observed in chiral molecules.

Superimposable

Describes when two objects can be placed on top of each other, matching perfectly in shape and size.

Meso Form

A type of stereoisomer with multiple chiral centers that is superimposable on its mirror image due to a plane of symmetry, rendering it achiral.