adding the google remarketing code and how- thanks

hi there

im need to add to my landing page made in muse this code

<script type="text/javascript">

/* <![CDATA[ */

var google_conversion_id = 958078534;

var google_custom_params = window.google_tag_params;

var google_remarketing_only = true;

/* ]]> */

</script>

<script type="text/javascript" src="//www.googleadservices.com/pagead/conversion.js">

</script>

<noscript>

<div style="display:inline;">

<img height="1" width="1" style="border-style:none;" alt="" src="//googleads.g.doubleclick.net/pagead/viewthroughconversion/958078534/?value=0&amp;guid=ON&am p;script=0"/>

</div>

</noscript>

where do i need to place it in my site ?

thanks