Exhibit 20

question 83

Multiple Choice

Exhibit 20.12.A magician has a coin that may or not be fair.The results of 30 flips of the coin are: H H T H T H H T H H T H H T H T H H H T T T T T H H H H H T. Refer to Exhibit 20.12.To determine if the coin is fair using the Wald-Wolfowitz runs test,the competing hypotheses are:

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Definitions:

T-Distributions

A family of probability distributions that arises when estimating the mean of a normally distributed population in situations where the sample size is small and population standard deviation is unknown.

Degrees Of Freedom

Degrees of freedom are the number of values in a final calculation of a statistic that are free to vary, often linked to the sample size.

Degrees Of Freedom

The number of independent values or quantities that can vary in the analysis without violating any constraint.

Sample Size

The number of observations or data points collected in a study or used in a statistical analysis, crucial for the validity and reliability of results.