TABLE 10-14
a Problem with a Telephone Line That

question 31

Multiple Choice

TABLE 10-14
A problem with a telephone line that prevents a customer from receiving or making calls is disconcerting to both the customer and the telephone company. The data on samples of 20 problems reported to two different offices of a telephone company and the time to clear these problems (in minutes) from the customers' lines are collected. Below is the Excel output to see whether there is evidence of a difference in the mean waiting time between the two offices assuming that the population variances in the two offices are not equal.
$$\begin{array}{l}\text { t- Test: Two- Sample Assuming Unequal Variances }\\\begin{array} { l r r } \hline & \text { Office 1 } & \text { Office 2 } \\\hline \text { Mean } & 2214 & 2.0115 \\\text { Variance } & 2.951657 & 3.57855 \\\text { Observations } & 20 & 20 \\\text { Hypothesized Mean Difference } & 0 & \\\mathrm { df } & 38 & \\\mathrm { t } \text { Stat } & 0.354386 & \\\mathrm { P } ( \mathrm { T } < = \mathrm { t } ) \text { one- tail } & 0.362504 & \\\mathrm { t } \text { Critical one- tail } & 1.685953 & \\\mathrm { P } ( \mathrm { T } < = \mathrm { t } ) \text { two- tail } & 0.725009 & \\\mathrm { t } \text { Critical two- tail } & 2.024394 &\end{array}\end{array}$$
-Referring to Table 10-14, suppose ? = 0.05. Which of the following represents the result of the relevant hypothesis test?

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

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Definitions:

Personalize Change

The act of tailoring adjustments or transformations to suit individual preferences or needs.

Acknowledge

To recognize the existence, validity, or legality of something or someone's efforts or achievements.

Wait Patiently

To remain in a state of rest or stand by without complaint while anticipating an outcome.

Workforce Diversity

refers to a variety of differences among people in an organization, including race, gender, age, ethnicity, physical ability, sexual orientation, and other attributes.