SCENARIO 10-13
the Amount of Time Required to Reach a Customer

question 133

Multiple Choice

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(are) the critical value(s) of the relevant hypothesis test if the level of significance is 0.10?

• A)1.6860
• B)\(\pm\) 1.6860
• C)2.0244
• D)\(\pm\) 2.0244

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Definitions:

Aqueous Solution

A solution in which the solvent is water.

Electrophoresis

A laboratory technique used to separate macromolecules like DNA or protein based on their size and charge.

Cathode

The electrode in a battery or electrolytic cell where reduction occurs; it attracts cations.

Anode

The electrode in an electrochemical cell at which oxidation occurs, electrons are released, and positive current flows into the device from the external circuit.