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

question 160

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, what assumptions are necessary for testing if there is evidence of a difference in the variabilities of the amount of time required to reach a customer service
Representative between the two hotels to be valid?

• A) Both sampled populations are normally distributed.
• B) Both samples are random and independent.
• C) Neither (a) nor (b) is necessary.
• D) Both (a) and (b) are necessary.

Differentiate between sleep and rest and their impacts on the body.

Manage and support pediatric sleep issues, such as sleepwalking and enuresis.

Understand the classification and characteristics of different sleep disorders.

Describe therapeutic patient teaching for sleep disturbances.

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Psychological concepts focusing on observable behaviors, emphasizing the role of external stimuli in shaping behavior.

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