A Coach Uses a New Technique to Train Gymnasts

question 22

Essay

A coach uses a new technique to train gymnasts.7 gymnasts were randomly selected and their competition scores were recorded before and after the training.The results are shown below.
Do the data suggest that,on average,the training technique is effective in raising the gymnasts' scores? Perform a paired t-test at the 5% significance level.

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Definitions:

Protected Members

Class members that can be accessed within their own class, subclasses, and the package but not externally.

Superclass

The class from which a subclass inherits fields and methods, often referred to as a parent class.

Private Members

Variables or methods of a class that cannot be accessed directly from outside the class, intended to protect the internal state or behavior of the class.

Superclass

Superclass, also known as a parent class, is a class from which other classes inherit properties and methods in object-oriented programming.