THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 46

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In a random sample of 125 large retailers,90 used regression as a method of forecasting.In an independent random sample of 160 small retailers,80 used regression as a method of forecasting.
-Find a 95% confidence interval for the difference between the two population proportions.

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Definitions:

Syndiotactic Polystyrene

A type of polystyrene where the phenyl groups are positioned at alternating sides of the polymer chain, providing unique properties like higher crystallinity.

Polymer Backbone

The continuous chain of carbon atoms in a polymer, to which other atoms or chains are attached.

Isotactic

pertaining to polymers where all substituent groups are oriented on the same side of the polymer chain, giving specific physical properties.

Isotactic Polypropylene

A type of polypropylene where all the methyl groups are aligned on the same side of the polymer chain, leading to a high degree of crystallinity.