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

question 240

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. $$\begin{array}{l}\text { t-Test: Two-Sample Assuming Unequal Variances }\\\begin{array} { l r r } \hline & { \text { Hotel 1 } } & { \text { Hotel 2 } } \\\hline \text { Mean } & 2.214 & 2.0115 \\\text { Variance } & 2.951657 & 3.57855 \\\text { Observations } & 20 & 20 \\\text { Hypothesized Mean Difference } & 0 & \\\text { df } & 38 & \\\text { t Stat } & 0.354386 & \\\text { P(T<=t) one-tail } & 0.362504 & \\\mathrm { t } \text { Critical one-tail } & 1.685953 & \\\mathrm { P } ( \mathrm { T } < = \mathrm { t } ) \text { two-tail } & 0.725009 & \\\mathrm { t } \text { Critical two-tail } & 2.024394 & \\\hline\end{array}\end{array}$$
-Referring to Scenario 10-13, suppose ? = 0.10. Which of the following represents the result of the relevant hypothesis test?

• A) The alternative hypothesis is rejected.
• B) The null hypothesis is rejected.
• C) The null hypothesis is not rejected.
• D) Insufficient information exists on which to make a decision.

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Definitions:

Artery

A blood vessel that carries oxygenated blood away from the heart to the body.

Tachycardia

A condition where the heart rate exceeds the normal resting rate, often defined as a heart rate over 100 beats per minute in adults.

Beats Per Minute

A measurement indicating the number of beats in one minute, commonly used to determine heart rate.

Heartbeat

The rhythmic contraction and relaxation of the heart muscle, resulting in the pumping of blood through the body.