Question

**A section manager wishes to estimate the average number
of seconds required by a worker to complete a particular task. A
random sample of 20 observations of the task reveals that average
number of seconds required to complete the task was 100 seconds
with a standard deviation of 10 seconds. Assume that the number of
seconds required to do the job on all occasions is normally
distributed.**

**Which method would be most appropriate for analyzing
these data?**

**Group of answer choices**

**One-sample mean, z-interval**

**One-sample proportion interval**

**One-sample mean, t-interval**

**Two-sample mean, dependent samples interval**

**Two-sample mean, independent samples
interval**

**Regression Analysis**

Answer #1

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