 Kastenbaum and Lamphiear (1959).
The table gives the number of depletions (deaths) in 657 litters of mice, classified by
litter size and treatment.  This data set has become a classic in the analysis of
contingency tables, yet unfortunately little information on the details of the
experiment has been published.
</p>


<h3>Usage</h3>

<pre><code class='language-R'>data("Mice")</code></pre>


<h3>Format</h3>

<p>A frequency data frame with 30 observations on the following 4 variables, representing a 5 x 2 x 