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   _____   _    _     ______    _____    _    _   
  / ___// | || | ||  /_____//  |  ___|| | \  / || 
  \___ \\ | || | ||  `____ `   | ||__   |  \/  || 
  /    // | \\_/ ||  /___//    | ||__   | .  . || 
 /____//   \____//   `__ `     |_____|| |_|\/|_|| 
`-----`     `---`    /_//      `-----`  `-`  `-`  
                     `-`

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Text this: An adaptive CUSUM chart with single sample size for monitoring process mean and variance