TABLE 10-14 The Amount of Time Required to Reach a Customer Service

question 57

Multiple Choice

TABLE 10-14
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.

-Referring to Table 10-14, which of the following represents the relevant hypotheses tested?

• A) H₀ : μ_I - μ_II ≥ 0 versus H₁ : μ_I - μ_II < 0
• B) H₀ : μ_I - μ_II ≤ 0 versus H₁ : μ_I - μ_II > 0
• C) H₀ : μ_I - μ_II = 0 versus H₁ : μ_I - μ_II ≠ 0
• D) H₀ : μ_I - μ_II ≠ 0 versus H₁ : μ_I - μ_II = 0

---

Definitions:

Skewed

Refers to a distribution that is not symmetrical, where one tail is longer or fatter than the other.

Pregnant Women

Females in the state of carrying a developing fetus within their womb.

Histogram

A graphical representation that organizes a group of data points into user-specified ranges, showing the frequency of data in each range.

Skewed

Describes a distribution that is not symmetrical, with a majority of values leaning towards one side.