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A Researcher Records the Time in Seconds It Takes a Sample

question 40

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A researcher records the time in seconds it takes a sample of participants to walk alone through a dark portion of campus.The researcher computes SS = 1,200.Assuming that a sample of 25 participants was observed in this study,what is the standard deviation for these data?


Definitions:

Confidence Interval

An estimated range of values calculated from a sample that is likely to cover the true population parameter with a certain level of confidence.

Population Variance

A measure of the dispersion or spread of a set of data points in a population, quantifying how much the members of a population differ from the population mean.

Applicants' Grades

The numerical or letter academic performance indicators provided by educational institutions for students.

Confidence Estimate

A range or interval of values derived from sample data that is likely to contain the true value of a population parameter with a specified level of certainty.

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