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

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