LSAT Scores the Admissions Officer for the Graduate Programs at the at the University

question 160

Short Answer

LSAT Scores
The Admissions officer for the graduate programs at the University of Pennsylvania believes that the average score on the LSAT exam at his university is significantly higher than the national average of 1,300.An accepted standard deviation for LSAT scores is 125.A random sample of 25 scores had an average of 1,375. ​ ​
-{LSAT Scores Narrative} Calculate the p-value.

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Definitions:

Z-values

Standardized scores that indicate the number of standard deviations an element is from the mean of its distribution, used in statistical analysis.

Confidence Interval

A continuum of numerical values, deduced from sample analyses, presumed to encapsulate the value of an undefined population attribute.

Independent Samples

Two or more groups of data that are not related or influenced by the same variables, allowing for comparisons between the groups in statistical analysis.

Confidence Interval

A range of values derived from sample statistics that is likely to contain the value of an unknown population parameter with a specified probability.