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To improve the work environment for its engineers, Segment.com rearranged its work areas to move the engineers to the quietest area of its building, and moved its sales and marketing force to to the loudest area.The result was an increase in output equivalent to hiring 10 to 15 additional workers.Which of the following statements best describes this change at Segment.com?
P-value
A statistic that quantifies the probability of observing the obtained results, or more extreme, if the null hypothesis is true.
Significance Level
The threshold below which a p-value indicates that the observed data is unlikely to have occurred by chance, leading to rejection of the null hypothesis.
Null Hypothesis
A statement in statistical analysis that proposes there is no significant effect or difference between certain variables or groups.
Statistical Test
A method of making decisions or inferences about population parameters based on sample data, often involving a comparison between an observed test statistic and a critical value.
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