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Faster than the wind several people spotted the errors<br>
<br>
<br>
<br>
<blockquote type=cite class=cite cite>while this refuses to take the
&quot;new&quot; and predict ?<br>
lot &lt;- c(30,20,60,80,40,50,60,30,70,60)<br>
hours &lt;- c(73,50,128,170,87,108,135,69,148,132)<br>
z1 &lt;- lm(hours~lot)<br>
new &lt;- data.frame(x=80) </blockquote><br>
<b>new &lt;- data.frame(lot=80)<br>
</b>and<br>
<b>predict(z1,new,interval=&quot;confidence&quot;,level=.90)<br>
<br>
</b><blockquote type=cite class=cite cite>predict(z1,new,interval=&quot;confidence&quot;,level=90)<br>
</blockquote><br>
<br>
Thank you for your efforts and kindness !<br>
<br>
Troels<br>
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