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  ______    ______    ______    _____     ____    
 /_   _//  /_   _//  /_____//  |  ___||  |  _ \\  
 `-| |,-    -| ||-   `____ `   | ||__    | |_| || 
   | ||     _| ||_   /___//    | ||__    | .  //  
   |_||    /_____//  `__ `     |_____||  |_|\_\\  
   `-`'    `-----`   /_//      `-----`   `-` --`  
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Text this: An Explicit Analytical Solution of the Average Run Length of an Exponentially Weighted Moving Average Control Chart using an Autoregressive Model