The Employees of Cybertronics Inc

question 56

Multiple Choice

The employees of Cybertronics Inc.need to complete a certification online.A random sample of 49 employees gives an average time for completion of all the coursework and passing the tests of 6 hours.Assume that the population standard deviation is 6 hours and the population of employees is fairly large.Construct a 95% confidence interval for the average time required to complete the certification.

• A) 18.28 to 21.72
• B) 18.32 to 21.68
• C) 18.36 to 21.64
• D) 18.40 to 21.60
• E) 19.76 to 20.24

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Definitions:

Independent Variables

Variables in an experiment or model that are manipulated or varied by the researcher to determine their effect on the dependent variable.

First-Order Model

A first-order model in dynamics or control theory refers to a system whose behavior is described by a first-order differential equation, showing how the system's output responds over time to changes in input.

Unit Increase

A single increment of increase in the value or level of a variable or measurement.

Holding Constant

A method in scientific and economic studies where certain variables are fixed to isolate the effects of others.