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TABLE 10-13 The Amount of Time Required to Reach a Customer Service

question 204

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TABLE 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.
TABLE 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.    -Referring to Table 10-13, which of the following represents the relevant hypotheses tested? A)  H₀: μI - μII ≥ 0 versus H₁: μI - μII < 0 B)  H₀: μI - μII ≤ 0 versus H₁: μI - μII > 0 C)  H₀: μI - μII = 0 versus H₁: μI - μII ≠ 0 D)  H₀: μI - μII ≠ 0 versus H₁: μI - μII = 0
-Referring to Table 10-13, which of the following represents the relevant hypotheses tested?


Definitions:

Experiment

A method of testing hypotheses by observing the outcomes of controlled conditions.

Correlation

A statistical measure that indicates the extent to which two or more variables fluctuate together, showing the relationship but not causation between them.

Causation

The relationship between cause and effect, where one event or action directly results in another.

Experiments

Systematic and scientific procedures carried out under controlled conditions to investigate a hypothesis or demonstrate a known fact.

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