The Following Data Represent the Weights (In Kilograms) of a Sample

question 139

Short Answer

The following data represent the weights (in kilograms) of a sample of 30 horses: Weight
$$\begin{array} { l } 165 \\175 \\150 \\155 \\173 \\149 \\145 \\153 \\153 \\153 \\152 \\145 \\164 \\143 \\170 \\175 \\148 \\174 \\171 \\156 \\166 \\168 \\152 \\150 \\173 \\168 \\146 \\155 \\172 \\159\end{array}$$ Compute the sample variance and sample standard deviation.

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Definitions:

Test Statistic

A value calculated from sample data that is used in hypothesis testing to determine if there is evidence to reject the null hypothesis.

Inferential Statistics

A branch of statistics focused on drawing conclusions and making predictions about a population based on a sample.

Inferential Parameters

Parameters derived from sample data for the purpose of making inferences about the larger population.

Sampling Distribution

The probability distribution of a statistic based on a random sample.