What Should Be Your First Step When Sizing Water Service

question 4

Multiple Choice

What should be your first step when sizing water service and water distribution layout?

• A)prepare a diagram of the distribution system
• B)obtain lowest probably pressure delivered at the site from water utility
• C)select water pipe sizes
• D)determine available pressure drop for pipe friction loss

---

Definitions:

Alternative Hypothesis

A hypothesis that contradicts the null hypothesis; it suggests there is an actual effect or difference.

Two-sided Test

A statistical test that considers both directions of effect by evaluating whether a parameter is either significantly higher or lower than a hypothesized value, allowing for rejection of the null hypothesis for deviations in two directions.

P-value

A metric used in statistics to assist researchers in assessing the importance of their findings, signifying the chance of achieving the observed outcomes assuming the null hypothesis is accurate.

Test Statistic

A calculated value that is used to assess the evidence against the null hypothesis in a statistical test.