In order to increase revenue many video game publishers sell
     In order to increase revenue, many video game publishers sell downloadable content (DLC) separately from the main game. Such content could include additional costumers for the playable characters, additional online game modes, special weapons, etc.  A recent industry survey  923 game players ages 20 to 30 asking them how important DLC was to their enjoyment of a game in that sample, 632 people reported that DLC was \"very important\" to them What is the lower bound for a 90% confidence in level for the true proportion of game players age 20 to 30 who believe DLC very important? Report your to two decimal places. 
  
  Solution

