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A Teclear, Inc. call center requires service operators to answer telephone calls from customers...

Question:

A Teclear, Inc. call center requires service operators to answer telephone calls from customers in an average time of 0.15 minutes or less. A sample of 36 actual operator times was drawn, and the results are given in the following table. In addition, operators are expected to determine customer needs and either respond to them or refer the customer to the proper department within 0.55 minute. Another sample of 36 times was taken for this job component and is also given in the table. If these variables can be considered to be independent, is the average time taken to perform each component statistically different from the standard?

Component Mean Time Standard Deviation

Answer 0.1523 0.0183

Service 0.5790 0.0902

Hypothesis Testing Steps:

1. Set the null hypothesis and alternative hypothesis

2. Set the significance level

3. Find the value of z-test

4. Compute the p-value from the z table

5. Make a comparison between the p-value and the significance level

Answer and Explanation: 1

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The given problem will be analyzed in two parts:

1st part as for the answer

2nd part as for service conditions

Answe part:

Given data:

Average...

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Hypothesis Testing Definition, Steps & Examples

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Chapter 10 / Lesson 1
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