A Sample of 75 Information Systems Managers Had an Average

question 12

Multiple Choice

A sample of 75 information systems managers had an average hourly income of $40.75 with a standard deviation of $7.00.If we want to determine a 95% confidence interval for the average hourly income of the population, the value of t is

• A) 1.96.
• B) 1.645.
• C) 1.28.
• D) 1.993.

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Definitions:

Physical Products

Tangible items that can be seen, touched, and purchased, as opposed to services or digital goods.

Industrial Market

The market for goods, services, and supplies used in the production of other goods and services rather than for personal consumption.

Individual Quick Freeze

A food preservation process that rapidly freezes individual pieces of food, preserving freshness, texture, and flavor.

North American Industry Classification System

A classification system used by business and government to categorize and measure economic activity in the United States, Canada, and Mexico.