TABLE 10-14
a Problem with a Telephone Line That Prevents

question 135

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.
$$\begin{array}{l}\text { t- Test: Two- Sample Assuming Unequal Variances }\\\begin{array} { l r r } \hline & \text { Office 1 } & \text { Office 2 } \\\hline \text { Mean } & 2214 & 2.0115 \\\text { Variance } & 2.951657 & 3.57855 \\\text { Observations } & 20 & 20 \\\text { Hypothesized Mean Difference } & 0 & \\\mathrm { df } & 38 & \\\mathrm { t } \text { Stat } & 0.354386 & \\\mathrm { P } ( \mathrm { T } < = \mathrm { t } ) \text { one- tail } & 0.362504 & \\\mathrm { t } \text { Critical one- tail } & 1.685953 & \\\mathrm { P } ( \mathrm { T } < = \mathrm { t } ) \text { two- tail } & 0.725009 & \\\mathrm { t } \text { Critical two-tail } & 2.024394 & \\\hline\end{array}\end{array}$$
-Referring to Table 10-14, suppose ? = 0.05. Which of the following represents the correct conclusion?

• A) There is evidence of a difference in the variability of the waiting time between the two offices.
• B) There is no evidence that the variability of the waiting time between the two offices are the same.
• C) There is no evidence of a difference in the variability of the waiting time between the two offices.
• D) There is evidence that the variability of the waiting time between the two offices are the same.

Understand the concept of reciprocal determinism and its role in development.

Identify and describe the components of Bronfenbrenner's bioecological theory.

Recognize the principles of operant conditioning and reinforcement in behavioral development.

Comprehend critics' perspectives on major developmental theories including Vygotsky's, Piaget's, and information processing theories.

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Definitions:

Brand Recognition

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Brand Preference

The degree to which consumers favor one brand over competing brands, often influenced by marketing, personal experiences, and perceptions.

Strategy Canvas

Tool for plotting out the competitive position of a company relative to its competitors, focusing on key success factors and performance indicators.

Customer Perceptions

The way customers view and interpret a company's products, services, and overall brand.