Use the dropdown menu to choose the Quality Control Study data set. The variable descriptions are as fotlows: - No: An arbitrary number assigned to each unit sampled from the foctory's production line - Thickness: The thickness of the sampled unit in malimeters (mm) - Weight: The weight of the sampled unit in grams (g) - Minutes: The number of minutes to build the unit from start to completion - Manager The manager on duty during the unit's production When the sample size is set to 160 , what is the value of the Weight variabie for the first observation?