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Information Regarding the Price of a Roll of Camera Film

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Information regarding the price of a roll of camera film (35 mm, 24 exposure) for a sample of 12 cities worldwide is shown below.Determine a 95% confidence interval for the population mean assuming that the population is normally distributed. Information regarding the price of a roll of camera film (35 mm, 24 exposure) for a sample of 12 cities worldwide is shown below.Determine a 95% confidence interval for the population mean assuming that the population is normally distributed.


Definitions:

S-cam Profile

A specific shape or contour of an S-cam, which is part of a drum brake system in large vehicles, responsible for transforming the motion of brake actuators into a force that applies the brakes.

Lithium-soap Grease

A type of lubricant made from lithium soap, known for its high resistance to water and its use in automotive and industrial applications to reduce friction and protect against corrosion.

API GL-5

A classification of gear lubricant specified by the American Petroleum Institute, indicating it’s suitable for high-pressure conditions and hypoid gears, commonly used in automotive axles.

Alcohol Evaporator Canister

A component in an air brake system that removes moisture from the air lines using an alcohol-based solution to prevent freezing.

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