THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: 
= 19.56 sd = 2.5 and n = 20
-Calculate the width of the interval for a 95% confidence interval.
Definitions:
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A man-made elastomer designed to mimic natural rubber, noted for its elasticity and produced through polymerization processes.
Saran
A synthetic polymer known for its barrier properties, particularly for preventing the passage of water vapor; used in food wrap and various coatings.
Alternating Copolymer
A polymer made from two different monomers arranged in an alternating sequence throughout the chain.
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Prestigious international award given annually in several categories including physics, chemistry, medicine, literature, and peace.
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