jQuery Error

I have the following line of code from a Mail Chimp Plugin:

<script>jQuery('#ns_widget_mailchimp_form-2').ns_mc_widget({"url" : "/index.php", "cookie_id" : "ns_widget_mailchimp-2", "cookie_value" : "c6f9f35ef27fb02131f8b4e0a821a4fe", "loader_graphic" : "../wp-content/plugins/mailchimp-widget/images/ajax-loader.gif"})(jQuery); </script>

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The error I get is this:
Uncaught TypeError: jQuery(...).ns_mc_widget(...) is not a function

Here is the unrendered code:

<script>jQuery('#<?php echo $this->id_base; ?>_form-<?php echo $this->number; ?>').ns_mc_widget({"url" : "<?php echo $_SERVER['PHP_SELF']; ?>", "cookie_id" : "<?php echo $this->id_base; ?>-<?php echo $this->number; ?>", "cookie_value" : "<?php echo $this->hash_mailing_list_id(); ?>", "loader_graphic" : "<?php echo $this->default_loader_graphic; ?>"})(jQuery); </script>

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