Consider the Following Work Breakdown Structure

question 4

Multiple Choice

Consider the following work breakdown structure:
What is the estimated standard deviation in the time for activity Z?

• A) 3 days
• B) 2 days
• C) 4 days
• D) 8 days
• E) 5 days

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Definitions:

Population Variances

A measure of dispersion that indicates how much individual members of a population deviate from the population mean.

Rejection Region

In hypothesis testing, the range of values for which the null hypothesis is rejected in favor of the alternative hypothesis.

Population Variances

A measure of the dispersion of all the data points in a population from the mean.

Confidence Interval

A span of numbers, extracted from statistics of a sample, which is probably going to include the value of an unseen population parameter, with a specified level of certainty.