Statement:
In Oman, mobile Internet is on average more expensive than in American Samoa

In the Most expensive mobile internet rating Oman holds position #55 ²⁰²² out of 204 and American Samoa is #69 out of 204 ²⁰²².
Position of Oman is worse than position of American Samoa.
Both countries holds average positions in the "Most expensive mobile internet" rating. So Average price of 1GB (USD) is an average for both Oman and American Samoa, compared to most countries of the World.

Referencies:

1. Most expensive mobile internet ²⁰²² by cable.co.uk

   The countries in the rating sorted by 'Average price of 1GB (USD)' in descending order.

   American Samoa	'Average price of 1GB (USD)' value is	2.33
   Oman	'Average price of 1GB (USD)' value is	2.92