A 17-Cubic-Yard Dump Truck Must Haul 476 Cubic Yards of Dirt

question 72

Multiple Choice

A 17-cubic-yard dump truck must haul 476 cubic yards of dirt to a construction site. How many trips must the truck make?

• A) 38
• B) 18
• C) 28
• D) 27
• E) 29

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Definitions:

Null Hypothesis

A hypothesis that asserts there is no significant difference or effect and serves as the default assumption to be tested against an alternative hypothesis.

Chi-square Statistic

A statistical test used to determine if there's a significant difference between observed frequencies and expected frequencies in categorical data.

Degrees of Freedom

The number of independent pieces of information used in the calculation of a statistic, often associated with the complexity of the data.

Degrees of Freedom

The number of independent pieces of information available to estimate another datum or parameter in a statistical analysis.