An Internet Service Provider Is Interested in Estimating the Proportion

question 103

True/False

An Internet service provider is interested in estimating the proportion of homes in a particular community that have computers but do not already have Internet access. To do this, the company has selected a random sample of n = 200 homes and made calls. A total of 188 homes responded to the survey question with 38 saying that they had a computer with no Internet access. The 95 percent confidence interval estimate for the true population proportion is approximately 0.1447 - 0.2595.

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Definitions:

Radial Piston Pump

A type of hydraulic pump where pistons are arranged radially around a central axis, used for high pressure and precise control applications.

Common-Rail

A diesel engine fuel injection system where the fuel is supplied to the injectors from a high-pressure accumulator common for all cylinders.

Counterbalance Valve

A valve that resists flow in one direction while permitting free flow in the other. Often connected to the outlet of a double-acting ram to support weight and prevent sudden, uncontrolled dropping.

Back Pressure

Back pressure is the resistance or force opposing the desired flow of fluids in piping systems, engines, or turbines, often deliberately used to optimize engine efficiency or control fluid movement.