Twenty Economists Were Sampled and Asked to Predict If the National

question 82

Multiple Choice

Twenty economists were sampled and asked to predict if the national economy would improve during the next 12 months. Eleven of the economists predicted an increase, two economists predicted no change, and seven economists predicted a decrease in the economy. Conduct a hypothesis test at the 0.10 significance level to determine if the majority of economists predict an increase. The null hypothesis is:

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Definitions:

Ancestor Class Constructor

A constructor call for a superclass in an inheritance hierarchy, used to initialize the state of an ancestor class before the derived class.

Superclass Constructor

The constructor of a superclass that is called when an instance of a derived class is created, often used to initialize state inherited from the superclass.

Subclass Constructor

A subclass constructor is a special method in object-oriented programming used to create instances of a subclass, possibly invoking a superclass's constructor as part of its process.

Clone Method

A method that creates and returns a copy of an object, often overriding the protected clone method defined in the Object class.