A Researcher Records the Time in Seconds It Takes a Sample

question 40

Multiple Choice

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?

• A)48 seconds
• B)50 seconds
• C)6.9 seconds
• D)7.1 seconds

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