A University Wants to Estimate the Average Distance That Commuter

question 10

Multiple Choice

A university wants to estimate the average distance that commuter students travel to get to class with an error of ± 3 miles and 90 percent confidence. What sample size would be needed, assuming that travel distances are normally distributed with a range of X = 0 to X = 50 miles, using the Empirical Rule μ ± 3σ to estimate σ.

• A)About 28 students
• B)About 47 students
• C)About 30 students
• D)About 21 students

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Definitions:

Modified First Window

Refers to the altered initial interface or window of an application from its default state, typically involving changes made by programming or user customization.

actionPerformed Method

A method in Java that handles action events, typically implemented from an ActionListener interface to respond to user interactions.

ActionListener Interface

An interface in Java used to receive action events, typically from GUI elements like buttons.

Boolean Value

A type of value that can only be true or false, used in logical expressions and conditions.