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SCENARIO 10-13
The amount of time required to reach a customer service representative has a huge impact on customer satisfaction.Below is the Excel output from a study to see whether there is evidence of a difference in the mean amounts of time required to reach a customer service representative between two hotels.Assume that the population variances in the amount of time for the two hotels are not equal.
t-Test: Two-Sample Assuming Unequal Variances
Two-Sample Tests 10-41
-Referring to Scenario 10-13,what is the 95% confidence interval estimate for the difference in the two means if the two population variances are assumed to be the same?
Poly(Ethylene Terephthalate)
A thermoplastic polymer resin of the polyester family, used in fibers for clothing, containers for liquids and foods, and in thermoforming applications.
Hydrolyzed
The process where a compound undergoes decomposition as a result of interacting with water.
Crystallinity
The degree to which a solid material has a crystal structure, impacting its physical properties like melting point and hardness.
Polymer
Large molecules made from repeating subunits called monomers, utilized in various applications from plastics to DNA.
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