A Behaviorist Has Performed the Following Experiment

question 22

Essay

A behaviorist has performed the following experiment. For each of 10 sets of identical twins who were born 30 years ago, he recorded their annual incomes, according to which twin was born first. The results (in $1,000s)are shown below. Can he infer at 5% significance level that there is a difference in income between the twins?

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Definitions:

Probability Tree

A graphical representation used to illustrate all possible outcomes of a sequence of events and their probabilities.

First Set

In the context of data or series, it is the initial group or sequence under consideration.

Subscribers

Individuals or entities that have agreed to receive services or communications, typically on a recurring basis.

Proportion

A statistical measure that refers to the fraction of the total that possesses a certain attribute or characteristic.