A manufacturing process produces tubeless mountain bike tires in batches of 200.Past records show that 6% of the tires will not hold air.An engineer tests five batches,each one week apart,and shows the proportion of tires that will not hold air below.Proportion of tires that will not hold air: 
a.Construct the centerline and the upper control limit for the 
chart.
b.Should the engineer be worried? Comment on any trend in the proportion of tubeless tires that will not hold air.
Definitions:
Operations
Refers to the mathematical and logical computations that can be performed on data, such as addition, subtraction, and comparison.
Mixed Expression
Refers to an expression in programming that contains different types of operands, such as combining integers and floats in calculations.
Floating-Point Numbers
Numbers that contain fractional parts represented in a way that can support a wide range of values with varying levels of precision.
Integer Operands
The integers (whole numbers) that are used as input for an operation in computer programming or mathematics.
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