AT T Settles Lawsuit for \$100 Million &lt;p&gt;\&lt;/p&gt;&lt;p&gt; WASHINGTON (Reuters) - AT T Corp. &lt;T.N&gt; will pay \$100\million to end a class-action lawsuit by investors who accused\AT T and former Chairman C. Michael Armstrong of lying about\its outlook to boost its share price, the company said on\Tuesday.&lt;/p&gt;