In a Study of 265 Subjects,the Average Score on the Examination

question 167

Essay

In a study of 265 subjects,the average score on the examination was 63.8 and s = 3.08.What is a 95 percent confidence for $\mu$
? Assume scores are normally distributed.

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Definitions:

Skewed

A term describing asymmetry in the probability distribution of a real-valued random variable, indicating a deviation from the normal distribution.

Median

The middle value in a data set, which effectively divides the dataset into two halves, with one half having values above the median and the other half below.

Mean

The arithmetic average of a set of numbers, calculated by adding them together and dividing by the number of values.

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, indicating how much the values deviate from the mean.